All analysis was generated autonomously, without human review. Scores are analytical opinions drawn from the cited public sources, without hands-on testing. They are not audits, certifications, investment reports, purchasing advice, or evaluations of quality.
SentinelOne, which acquired Prompt Security in September 2025, sells it within its Singularity security platform. The product lets enterprise security teams control employees’ AI tools, AI agents acting for the company, and the AI apps it builds. Founded in 2023, Prompt Security raised $23 million, including an $18 million Series A led by Jump Capital. CTech reported 50 employees at the time of the deal. Its named customers include 10x Banking, Carnival Corporation, and Royal Caribbean. Its browser extensions, desktop software, and a gateway between AI agents and outside tools screen prompts and agent requests in real time, redacting sensitive data or blocking a request. A customer that leaves would have to remove those components and rebuild the policies its team set up.
| Description | Prompt Security, now sold by SentinelOne, secures how employees, developers, homegrown AI apps, and agents use AI, covering shadow AI, sensitive data leakage, and prompt injection. | [f1] |
|---|---|---|
| Acquisition | SentinelOne, announced 2025-08-05 | [f2] |
| Founded | 2023 | [f3] |
| HQ | Tel Aviv, Israel | [f4] |
| Funding | $23M total | [f3] |
| Latest funding | Series A, $18 million (November 2024) | [f3] |
| Deployment | SaaS, Self-hosted | [f5] |
| Product | What it does |
|---|---|
| Prompt Security | SentinelOne product with AI usage control, agentic AI security, and AI application security modules that discover shadow AI, redact sensitive data, and block prompt attacks in real time. |
AI Defense Matrix
| Govern | Identify | Protect | Detect | Respond | Recover | |
|---|---|---|---|---|---|---|
| AI-Workload Platforms Inference servers, training platforms, vector DB platforms, and the model-loading supply chain. | ||||||
| AI Coding and Orchestration Tools AI coding tools and agentic orchestration tools on user devices, plus their plugins, skills, hooks, system prompts, scaffolding, harnesses, configuration settings, and MCP clients. | ||||||
| AI-Generated Code Code produced by AI tools, AI-assisted reviews, AI-generated infrastructure-as-code and tests, and vibe-coded apps that bypass CI/CD. | ||||||
| AI Traffic Paths to external and self-hosted AI services, MCP tool channels, agent-to-agent calls, model-registry downloads, and egress to unapproved AI services. AI gateways, LLM routers, and MCP gateways steer traffic along those paths. The steering decisions and their inputs belong here too: routing policies, MCP server registries, and agent naming and discovery services. | ||||||
| AI Model Model weights, fine-tuning checkpoints, model cards, registries, an AI bill of materials (AIBOM), and the third-party LLMs your enterprise consumes. | ||||||
| Training Data Datasets used for training, fine-tuning, and continued learning. | ||||||
| Runtime AI Data User prompts, inference inputs, RAG content, vector DB content, persistent agent memory, and interaction history. | ||||||
| AI Agent Identities AI agents as non-human principals, plus credentials, keys, permission scopes, service accounts, and delegation chains across agents and tools. |
Prompt Security screens prompts and responses at runtime, discovers employee AI tool use including shadow AI, and enforces data privacy policy. The product is mapped to the AI Defense Matrix. [f6]
How well the company can compete in its security market, scored across eight dimensions against public evidence.
| Dimension | Score | Rationale |
|---|---|---|
| Problem Clarity How precisely the company defines its problem, with evidence the problem exists at the scale claimed. | 3/5 | The buyer is the enterprise security team that governs how employees, developers, applications, and agents use AI, and CTech describes the pain as attackers crafting prompt-based exploits while employees expose sensitive information through tools like ChatGPT. CTech and SentinelOne describe that pain in qualitative terms, so the problem is clear and credible without the quantified pain from several non-vendor sources that the next rung requires. [s1, s10] |
| Capability Depth How specific the technical capabilities are, with evidence beyond marketing claims such as docs and third-party validation. | 3/5 | SentinelOne describes three modules for workforce AI use across more than 15,000 services, agents, and homegrown applications, plus a gateway that screens calls between AI applications and servers and assigns each server a risk score. Customer accounts in Prompt Security’s Cymulate case study and Gartner Peer Insights reviews describe data protection and setup experiences without a third-party technical evaluation of the screening. [s1, s5, s6, s15] |
| Market Timing Whether the market is ready for this product, with evidence that buyers are actively seeking solutions. | 3/5 | The enabler is enterprise use of generative AI tools such as ChatGPT, which CTech ties to employee data exposure, and the company was founded in August 2023 to protect enterprises from those risks. Gartner Peer Insights reviews from June and August 2026 are the one kind of buyer-side signal from the past year, one of them from a retailer seeking an AI governance platform as a new initiative. The 2025 acquisitions CTech reports are moves by acquirers, and the Gartner Cool Vendors placement dates from September 2025. [s7, s10, s11, s15] |
| Team Credibility Demonstrated domain expertise with public signals such as prior exits, publications, and industry recognition. | 3/5 | CTech reports that Itamar Golan founded the AI divisions at Check Point and Orca Security and that Lior Drihem was Director of Innovation at Check Point, verifiable senior in-domain roles. The cited sources also report Prompt Security’s sale to SentinelOne but name no earlier company either founder built and sold and no sustained publication record. [s10, s14] |
| GTM Proof Evidence of actual traction (customers, revenue signals, partnerships) beyond stated intentions. | 4/5 | SentinelOne’s product page presents 10x Banking and Carnival Corporation as customers through their CISOs, the Prompt Security blog publishes a Cymulate case study, and CTech’s November 2024 Series A coverage lists clients including Royal Caribbean, St. Joseph’s Healthcare, and 10x Banking. Gartner Peer Insights adds 35 ratings from end users. The founder supplied the customer and revenue figures, including the growth figures CTech reported. The cited sources contain no independent measurement of revenue or customer scale. [s1, s3, s6, s12, s15] |
| Funding Efficiency Whether funding matches go-to-market ambition, with signs of capital-efficient growth. | 4/5 | CTech reports two funding rounds, $5 million in January 2024 and $18 million in November 2024, $23 million in total, and SentinelOne’s 10-K records the September 2025 purchase for about $133.6 million in cash plus 1,555,099 shares and 415,109 assumed options. That filed exit confirms output per dollar, and no independent profitability or operating-efficiency figure appears in the cited sources, which holds the score below the top rung. [s11, s12, s14] |
| Category Clarity Whether the company creates or fits a recognizable category that buyers can quickly place in their stack. | 3/5 | Gartner Peer Insights places the product in its AI Usage Control and AI Security and Anomaly Detection markets, SentinelOne’s 10-K calls it a security for AI solution, and CTech groups the company with Lasso Security, Aim Security, and Pillar Security. Those placements use different category names, so buyers can place the product in a recognizable slot that is still taking shape. [s10, s14, s15] |
| Incumbent Defensibility How vulnerable the core value proposition is to absorption as a feature by a platform vendor. | 3/5 | Platform vendors sell overlapping controls, and Gartner Peer Insights lists Prisma AIRS and Cisco AI Defense among the top alternatives, while CTech recounts purchases of Protect AI, Apex, and Robust Intelligence by Palo Alto Networks, Tenable, and Cisco. Replacing browser extensions, the agent, and configured policies would take work, and no data asset or compliance requirement that prevents rival substitution appears in the cited sources. [s5, s6, s11, s15] |
Prompt Security built software that lets security teams govern how employees, developers, applications, and AI agents use generative AI, and SentinelOne, which completed its acquisition of the company in September 2025, now sells it under the Prompt Security name. SentinelOne’s product page describes coverage from employees and developers to homegrown apps and autonomous agents, starting with an inventory of every AI tool and code assistant in use, including unsanctioned shadow AI.
Press and buyers describe the problem in plain terms. CTech writes that attackers craft prompt-based exploits while employees unknowingly expose sensitive information through tools like ChatGPT, and a Gartner Peer Insights reviewer at a retailer writes that the team was looking for an AI governance platform as a new cybersecurity initiative.
Platform vendors bought into the category in 2025. CTech recounts Palo Alto Networks’ $700 million purchase of Protect AI, Tenable’s $100 million purchase of Apex, and Cisco’s $500 million purchase of Robust Intelligence the year before, and SentinelOne’s 10-K describes Prompt as technology to secure AI in runtime for enterprise AI deployments. [s1, s10, s11, s14, s15]
SentinelOne sells the product as three modules. AI Usage Control inventories AI tools and code assistants and redacts sensitive data across more than 15,000 AI services. Agentic AI Security discovers unsanctioned agent deployments. AI Application Security blocks adversarial prompts and scrubs sensitive outputs with a real-time AI firewall.
The agentic coverage centers on an MCP gateway. SentinelOne’s acquisition post describes the gateway sitting between AI applications and more than 13,000 known MCP servers, intercepting every call, prompt template, and response, assigning each server a dynamic risk score, and enforcing allow, block, filter, or redact actions.
Customer reviews give a mixed read on daily use. On Gartner Peer Insights, where the product averages 4.3 across 35 ratings, one reviewer praises its semantic approach to data loss prevention over rigid pattern matching, while another reports that setup was not very intuitive and that rules could not be reordered. The Prompt Security site also lists open-source tools, including ps-fuzz, which tests and hardens a system prompt against dynamic LLM-based attacks across 16 providers and 16 attack types. [s1, s2, s5, s15]
Prompt Security now competes as part of SentinelOne’s platform against other platforms’ AI security products. Gartner Peer Insights lists Prisma AIRS and Cisco AI Defense among its top alternatives, and CTech reported that Palo Alto Networks bought Protect AI and Cisco bought Robust Intelligence before SentinelOne’s deal.
Before the sale, press placed it among Israeli GenAI security startups. Globes named Lasso Security and Apex Security as competitors, and CTech reported that Lasso Security, Aim Security, and Pillar Security had received acquisition offers in the weeks around the Prompt deal.
SentinelOne markets the product as part of the same platform and console that cover its endpoint, cloud, identity, and data security. A Gartner Peer Insights reviewer at a retailer describes choosing to trial Prompt because of a long partnership with SentinelOne. [s1, s10, s11, s13, s15]
Named customers speak for the product on SentinelOne’s page. Under a heading that reads Trusted by Teams Securing AI at Scale, the page quotes Richard Moore, CISO at 10x Banking, and Margarita Rivera, global CISO at Carnival Corporation, and the Prompt Security blog carries a Cymulate case study that quotes its CTO.
Earlier press and the founder add scale figures in the company’s own voice. CTech’s November 2024 Series A coverage listed clients including Royal Caribbean, Riskified, Elementor, 10x Banking, St. Joseph’s Healthcare, and Upstream Security, and quoted CEO Itamar Golan saying revenue had quintupled since the January launch. In the August 2025 acquisition post, Golan wrote that the company secured dozens of enterprises, including multiple Fortune 500 companies, and had built a multi-million-dollar annual recurring revenue business.
Gartner Peer Insights adds end-user ratings. The product averages 4.3 across 35 ratings, and an August 2026 review from a retailer describes a trial the team never completed because SentinelOne sales representatives did not know the product well enough. Prompt Security’s sales now run through SentinelOne’s representatives, so their command of the product affects how trials go. SentinelOne also announced in June 2026 an upcoming Amazon Bedrock AgentCore integration delivered through Prompt Security, with availability promised later in 2026. [s1, s3, s6, s8, s12, s15]
Itamar Golan and Lior Drihem founded Prompt Security in August 2023. CTech reports that both are graduates of Israel’s Unit 8200, that Golan founded the AI divisions at Check Point and Orca Security, and that Drihem was Director of Innovation at Check Point before joining Orca alongside him.
They raised $23 million across two rounds and sold the company to SentinelOne about two years after founding, and it employed about 50 people, mostly developers, when CTech covered the deal in August 2025. [s10, s11, s12, s14]
No attestation specific to Prompt Security appears in the reviewed sources. The trust.prompt.security subdomain returned a Cloudflare error page when probed in October 2026, and SentinelOne’s trust center lists SOC 2 Type 2, ISO/IEC 27001, and FedRAMP High for SentinelOne without naming Prompt Security.
Named customers in banking and healthcare give buyers references to check. 10x Banking’s CISO speaks for the product on SentinelOne’s page, and CTech’s 2024 client list includes St. Joseph’s Healthcare. Buyers now run diligence through SentinelOne, and one Gartner Peer Insights reviewer described the sales support during a trial as disorganized. [s1, s12, s15, s16, s17]
| Company | Relationship | Note | Compare |
|---|---|---|---|
| Lakera | competes with | Competes for the buyer that secures homegrown AI applications against prompt attacks at runtime. | |
| Aim Security | competes with | CTech named it among the GenAI security startups that received acquisition offers around the Prompt deal. | |
| Lasso Security | competes with | Globes named it a Prompt Security competitor, and CTech reported recent acquisition offers. | |
| Pillar Security | competes with | CTech named it alongside Lasso and Aim as a GenAI security startup that received acquisition offers around the Prompt deal. | N/AWe captured the evidence for these companies under different evidence-model versions (v1 vs v2), so the totals were scored under different conditions and are not directly comparable. |
| WitnessAI | competes with | Competes for the same buyer of employee AI-use visibility and policy enforcement. | N/AWe captured the evidence for these companies under different evidence-model versions (v1 vs v2), so the totals were scored under different conditions and are not directly comparable. |
| Noma Security | competes with | Competes for enterprise AI security budgets, and CTech cited its $100 million round in its coverage of the Prompt deal. | |
| Palo Alto Networks | competes with | Gartner Peer Insights lists Prisma AIRS among the top Prompt Security alternatives. | N/AWe scored these companies at different scopes, so the totals measure different things. |
| Cisco | competes with | Gartner Peer Insights lists Cisco AI Defense among the top Prompt Security alternatives. | N/AWe scored these companies at different scopes, so the totals measure different things. |
| Knostic | adjacent | Adjacent because it also addresses sensitive-data exposure through enterprise AI assistants. | N/AWe captured the evidence for these companies under different evidence-model versions (v1 vs v2), so the totals were scored under different conditions and are not directly comparable. |
Add analyzed competitors to compare them side by side with Prompt Security.
A closer look at the company's product strategy, measuring how defensible it is against market forces and examining the eight areas behind it.
reinforce or reposition
Prompt Security sits in the path of the AI traffic it screens. Its browser extensions, lightweight agent, and a gateway between AI agents and the outside tools they call redact or block prompts and agent requests before they proceed. Replacing it means rerouting that traffic and rebuilding the policies a security team has tuned. SentinelOne’s 10-K lists developed technology and customer relationships as the intangibles it acquired and attributes the goodwill to the assembled workforce and anticipated synergies. Its named buyers include 10x Banking and Carnival Corporation. SentinelOne completed its acquisition in September 2025 and now sells it as part of its Singularity security platform. Leaving therefore costs a customer that deployment and policy work.
| Dimension | Score | Rationale |
|---|---|---|
| Value Delivery Does the product sell software as the product, or judgment, trust, or accountability with software as the delivery mechanism. | 1/3 | The customer’s team operates Prompt Security, setting governance controls, data protection rules, and enforcement policies for its own AI use, and Cymulate’s security team mapped user groups to policies itself. Customers configure and operate the software and remain responsible for their security outcomes. |
| Switching Cost How expensive leaving is for a customer: data portability, integrations, learned workflows, network effects, regulatory data residency. | 2/3 | Replacing Prompt Security would require removing its browser extensions and agent and recreating a team’s policies, such as the rules Cymulate’s security team configured for different user groups. The cited sources describe deployment and policy configuration without estimating replacement work. |
| Compliance Moat Whether certifications, liability acceptance, or audit trails block an easy replacement. | 1/3 | SentinelOne’s trust center lists SOC 2 Type 2, ISO/IEC 27001, and FedRAMP High for SentinelOne without naming Prompt Security, and trust.prompt.security returned a Cloudflare error page when probed in October 2026. The reviewed sources show no product-specific authorization, retained liability, or other replacement-blocking requirement, so a funded competitor could meet the bar through ordinary enterprise preparation. |
| Problem Complexity Whether the product requires ML, optimization, real-time systems, or years of specialized expertise. | 3/3 | The product screens prompts, responses, and agent calls across browsers, desktop applications, APIs, and more than 13,000 servers, with data protection that one Gartner Peer Insights reviewer praises for interpreting meaning rather than matching fixed patterns. That real-time, language-aware inspection takes machine learning and real-time systems expertise to build. |
| Buyer Profile Whether buyers are SMB operators, mid-market IT teams, or regulated enterprises and governments with procurement gates. | 3/3 | SentinelOne sells Prompt Security to enterprises, and the named buyers include 10x Banking and Carnival Corporation, whose CISOs speak for the product, and St. Joseph’s Healthcare among the clients CTech listed in 2024. The founder also wrote that the company secured multiple Fortune 500 companies across financial services and retail, a company-reported figure. |
| Layer Whether the product is an end-user application, a platform with application features, or infrastructure other applications depend on. | 3/3 | Cymulate’s case study describes the browser extension detecting sensitive inputs and redacting or blocking them before they were submitted, and SentinelOne describes an MCP gateway between AI applications and MCP servers that intercepts every call and enforces allow, block, filter, or redact actions. Prompts and agent calls routed through those components proceed only after Prompt Security enforces policy on them, so it is infrastructure for that traffic. |
| Proprietary Data, Content, or IP Whether the product accumulates datasets, content licenses, or IP that a rival cannot recreate from scratch. | 1/3 | SentinelOne describes the MCP gateway assigning each known MCP server a dynamic risk score and the product covering more than 15,000 AI services, without identifying a retained, accumulated dataset in those descriptions. SentinelOne’s 10-K records developed technology and customer relationships as Prompt’s acquired intangibles and attributes goodwill to the assembled workforce and synergies, evidencing code and a team as the acquired assets. |
Prompt Security sells to enterprise security teams that govern how employees, developers, applications, and agents use AI. SentinelOne’s product page frames the coverage as running from employees and developers to homegrown apps and autonomous agents, and SentinelOne’s 10-K describes the acquired product as technology to secure AI in runtime for enterprise AI deployments.
The named buyers lean toward large and regulated organizations. SentinelOne’s page quotes CISOs from 10x Banking and Carnival Corporation, CTech’s 2024 Series A coverage lists clients including Royal Caribbean and St. Joseph’s Healthcare, and the founder wrote at the acquisition announcement that the company secured multiple Fortune 500 companies across financial services and retail.
Since the acquisition, SentinelOne’s own customers are part of the reachable market. A Gartner Peer Insights reviewer at a retailer describes choosing to trial Prompt because of a long partnership with SentinelOne, and SentinelOne markets the product as managed from the same console as its endpoint, cloud, identity, and data security.
SentinelOne describes real-time controls across workforce AI use, agents, and homegrown applications. The product page describes inventorying every AI tool and code assistant in use, redacting sensitive data and enforcing policies across more than 15,000 AI services, and discovering unsanctioned agent deployments. It also describes blocking adversarial prompts with a real-time AI firewall for homegrown applications.
The agentic coverage centers on an MCP gateway. SentinelOne’s acquisition post describes the gateway sitting between AI applications and more than 13,000 known MCP servers, intercepting every call, prompt template, and response, assigning each server a dynamic risk score, and enforcing allow, block, filter, or redact actions.
Customer reviews describe both strengths and friction. One Gartner Peer Insights reviewer praises the semantic approach to data loss prevention over pattern-matching tools that look for specific patterns, and another reports that setup was not very intuitive and that rules could not be reordered.
The team also publishes open-source tools. The Prompt Security site lists ClawSec, a security skill suite for AI agents that SDxCentral covered as a release hardening agent deployments against supply chain attacks and prompt injections, and ps-fuzz, which tests and hardens a system prompt against dynamic LLM-based attacks.
SentinelOne now sells Prompt Security through its own sales organization. SentinelOne’s product page offers a live demo, and a Gartner Peer Insights reviewer at a retailer describes being supported by SentinelOne sales representatives during a trial that the team never completed.
Named references come from SentinelOne’s page, the company’s blog, and earlier press. SentinelOne quotes the CISOs of 10x Banking and Carnival Corporation in customer testimonials. Prompt Security publishes a Cymulate case study, and CTech’s November 2024 coverage listed clients including Royal Caribbean, Riskified, and St. Joseph’s Healthcare.
SentinelOne is extending the product through an AWS integration. Its June 2026 announcement describes an upcoming Amazon Bedrock AgentCore integration delivered through Prompt Security and expected later in 2026, with existing Prompt Security licenses applied through a bring-your-own-license path.
Scale figures come from the company. In the August 2025 acquisition post, CEO Itamar Golan wrote that the company protected millions of AI interactions a month and had built a multi-million-dollar annual recurring revenue business. Gartner Peer Insights lists 35 ratings from end users.
SentinelOne publishes no Prompt Security price on its pricing page. The page lists Singularity Complete at $179.99 a year per endpoint and Singularity Commercial at $229.99 a year per endpoint, quotes Singularity Enterprise through sales, and names Prompt Security in none of those packages.
SentinelOne licenses Prompt Security as its own product. The AgentCore announcement says customers with existing Prompt Security licenses will apply them through a bring-your-own-license path, and that consumption scales as enterprise agent deployments scale.
SentinelOne sells its listed packages through partners. The pricing page states that purchases are made through an authorized third-party partner and that the partner’s pricing controls where it conflicts with the listed prices.
Prompt Security runs as software that the customer’s team deploys and configures. SentinelOne’s acquisition post describes a lightweight agent and browser extensions that discover sanctioned and unsanctioned AI use across browsers, desktop IDEs, terminal-based assistants, APIs, and custom workflows.
Operating the product means defining and maintaining policies. SentinelOne’s page lists setting governance controls, data protection rules, and enforcement policies as a setup step, and Cymulate’s security team mapped user groups to policies with different enforcement for research and development, marketing, and customer success.
SentinelOne says the product deploys in minutes without complex integrations or infrastructure changes. A Gartner Peer Insights reviewer found setup not very intuitive and needed support to complete it, so a rollout can depend on the support SentinelOne provides.
No attestation specific to Prompt Security appears in the reviewed sources. The trust.prompt.security subdomain returned a Cloudflare error page when probed in October 2026, and SentinelOne’s trust center lists SOC 2 Type 2, ISO/IEC 27001, and FedRAMP High for SentinelOne without naming Prompt Security.
The product keeps an audit trail of AI use. SentinelOne’s acquisition post says every prompt and response is captured with full context, giving security teams searchable logs for audit and compliance.
Buyers now run diligence through SentinelOne, so the quality of its sales support shapes the evaluation. One Gartner Peer Insights reviewer described that support during a trial as disorganized. Named customers in banking and healthcare, including 10x Banking and St. Joseph’s Healthcare, give buyers references to check.
Prompt Security now operates as part of SentinelOne’s Singularity Platform. SentinelOne describes it as built into the platform and managed from the same console as endpoint, cloud, identity, and data security, and its 10-K names Prompt Security as SentinelOne’s security for AI solution.
The former standalone site now serves resources while SentinelOne hosts the sales pages. The prompt.security product and about pages redirected to SentinelOne’s Prompt Security page when probed in October 2026, and the prompt.security homepage carries the Prompt Security from SentinelOne name with research, a glossary, and open-source tools.
SentinelOne is extending the product into partner platforms. Its June 2026 announcement describes an upcoming Amazon Bedrock AgentCore integration in which Prompt Security will supply detection signals for prompt injection, PII exposure, and data leakage that AgentCore acts on at its gateway.
Itamar Golan and Lior Drihem founded Prompt Security in August 2023. CTech reports that both are graduates of Israel’s Unit 8200, that Golan founded the AI divisions at Check Point and Orca Security, and that Drihem was Director of Innovation at Check Point before joining Orca alongside him.
CTech reports two funding rounds, and CTech and Globes both put the total raised at $23 million, while SentinelOne’s 10-K records completing the acquisition in September 2025, about two years after founding.
Work under SentinelOne continued in the open. The Prompt Security homepage lists open-source tools from Prompt Security, including ClawSec for AI agents, and SDxCentral covered SentinelOne’s release of ClawSec as a suite that hardens agent deployments.
| Id | Source | Tier | Accessed |
|---|---|---|---|
| f1 | SentinelOne: Prompt Security product page | official | 2026-10-20 |
| f2 | SentinelOne: press release announcing the agreement to acquire Prompt Security | official | 2026-10-20 |
| f3 | CTech on the Prompt Security Series A | press | 2026-10-20 |
| f4 | Globes: SentinelOne to buy Israeli startup Prompt Security | press | 2026-10-20 |
| f5 | AI Defense Matrix Catalog entry | other | 2026-06-07 |
| f6 | AI Defense Matrix Catalog mapping | other | 2026-10-20 |
| Id | Source | Tier | Accessed |
|---|---|---|---|
| s1 | SentinelOne: Prompt Security product page “One platform. Every AI touchpoint. Full visibility and control. From employees and developers to homegrown apps and autonomous agents, Prompt Security protects your entire AI ecosystem without slowing innovation.” | official | 2026-10-20 |
| s2 | Prompt Security: homepage, Prompt Security from SentinelOne “Prompt Security, from SentinelOne, secures enterprise use of generative AI with real-time visibility, policy enforcement, and automated risk mitigation.” | official | 2026-10-20 |
| s3 | Prompt Security blog: Prompt Security + SentinelOne, A New Chapter Begins “Prompt Security has entered into a definitive agreement to be acquired by SentinelOne” | official | 2026-10-20 |
| s5 | SentinelOne blog: A New Chapter for AI and Cybersecurity, SentinelOne Acquires Prompt Security “Prompt Security’s lightweight agent and browser extensions automatically discover both sanctioned GenAI apps and unsanctioned Shadow AI wherever employees work.” | official | 2026-10-20 |
| s6 | Prompt Security blog: Cymulate case study “Case Study: Securing AI for Cymulate - Ensuring Safe AI Adoption Across Teams | Prompt Security” | official | 2026-10-20 |
| s7 | Prompt Security blog: Gartner Cool Vendor in AI Security announcement “It's a proud day for us at Prompt Security, a SentinelOne company, as we have been recognized in the Gartner report for our innovative approach to AI security.” | official | 2026-10-20 |
| s8 | SentinelOne: press release on an Amazon Bedrock AgentCore integration “MOUNTAIN VIEW, Calif. — June 17, 2026 —” | official | 2026-10-20 |
| s10 | CTech: SentinelOne acquisition of Prompt Security “Calcalist has learned that SentinelOne is acquiring Prompt Security in a blue-and-white deal valued at approximately $250 million.” | press | 2026-10-20 |
| s11 | CTech: M&A spotlight shifts to Lasso, Aim, and Pillar after the Prompt deal “The company completed two funding rounds: $5 million in January 2024 and another $18 million in November 2024.” | press | 2026-10-20 |
| s12 | CTech: Prompt Security raises $18 million Series A “has raised $18 million in a Series A funding round. The round was led by Jump Capital and included participation from existing investor Hetz Ventures, as well as new investors such as Ridge Ventures, and major technology companies Okta and F5.” | press | 2026-10-20 |
| s13 | Globes: SentinelOne to buy Israeli startup Prompt Security “In total the Tel Aviv-based company raised just $23 million.” | press | 2026-10-20 |
| s14 | SEC EDGAR: SentinelOne Form 10-K for the fiscal year ended January 31, 2026 “Our security for AI solution, Prompt Security, empowers enterprises to embrace this new AI era with confidence.” | regulatory | 2026-10-20 |
| s15 | Gartner Peer Insights: Prompt Security reviews and ratings “4.3 (35 Ratings)” | other | 2026-10-20 |
| s16 | SentinelOne Trust Center (SafeBase), AI item, rendered “Compliance ACN CCPA Common Criteria Cyber Essentials Cyber Essentials Plus FedRAMP High FISMA High GDPR ISO/IEC 27001 SoA ISO/IEC 27001:2022 ISO/IEC 27017:2015 ISO/IEC 27018:2019 SOC 2 Type 2 TX-RAMP VPAT SOC 2” | official | 2026-10-20 |
| s17 | Trust subdomain probe of trust.prompt.security via curl, 2026-10-20: HTTP 403, Cloudflare error 1014, no readable portal, control subdomain unresolved | other | 2026-10-20 |
| Id | Source | Tier | Accessed |
|---|---|---|---|
| s1 | SentinelOne: Prompt Security product page “One platform. Every AI touchpoint. Full visibility and control. From employees and developers to homegrown apps and autonomous agents, Prompt Security protects your entire AI ecosystem without slowing innovation.” | official | 2026-10-20 |
| s2 | Prompt Security: homepage, Prompt Security from SentinelOne “Prompt Security, from SentinelOne, secures enterprise use of generative AI with real-time visibility, policy enforcement, and automated risk mitigation.” | official | 2026-10-20 |
| s3 | Prompt Security blog: Prompt Security + SentinelOne, A New Chapter Begins “Prompt Security has entered into a definitive agreement to be acquired by SentinelOne” | official | 2026-10-20 |
| s4 | SentinelOne: press release announcing the agreement to acquire Prompt Security “MOUNTAIN VIEW, CA – August 5, 2025 –” | official | 2026-10-20 |
| s5 | SentinelOne blog: A New Chapter for AI and Cybersecurity, SentinelOne Acquires Prompt Security “Prompt Security’s lightweight agent and browser extensions automatically discover both sanctioned GenAI apps and unsanctioned Shadow AI wherever employees work.” | official | 2026-10-20 |
| s6 | Prompt Security blog: Cymulate case study “Case Study: Securing AI for Cymulate - Ensuring Safe AI Adoption Across Teams | Prompt Security” | official | 2026-10-20 |
| s8 | SentinelOne: press release on an Amazon Bedrock AgentCore integration “MOUNTAIN VIEW, Calif. — June 17, 2026 —” | official | 2026-10-20 |
| s9 | SentinelOne: platform pricing and packages page “Singularity Complete For growing, collaborative teams. $179.99/yr. per endpoint” | official | 2026-10-20 |
| s10 | CTech: SentinelOne acquisition of Prompt Security “Calcalist has learned that SentinelOne is acquiring Prompt Security in a blue-and-white deal valued at approximately $250 million.” | press | 2026-10-20 |
| s11 | CTech: M&A spotlight shifts to Lasso, Aim, and Pillar after the Prompt deal “The company completed two funding rounds: $5 million in January 2024 and another $18 million in November 2024.” | press | 2026-10-20 |
| s12 | CTech: Prompt Security raises $18 million Series A “has raised $18 million in a Series A funding round. The round was led by Jump Capital and included participation from existing investor Hetz Ventures, as well as new investors such as Ridge Ventures, and major technology companies Okta and F5.” | press | 2026-10-20 |
| s13 | Globes: SentinelOne to buy Israeli startup Prompt Security “In total the Tel Aviv-based company raised just $23 million.” | press | 2026-10-20 |
| s14 | SEC EDGAR: SentinelOne Form 10-K for the fiscal year ended January 31, 2026 “Our security for AI solution, Prompt Security, empowers enterprises to embrace this new AI era with confidence.” | regulatory | 2026-10-20 |
| s15 | Gartner Peer Insights: Prompt Security reviews and ratings “4.3 (35 Ratings)” | other | 2026-10-20 |
| s16 | SentinelOne Trust Center (SafeBase), AI item, rendered “Compliance ACN CCPA Common Criteria Cyber Essentials Cyber Essentials Plus FedRAMP High FISMA High GDPR ISO/IEC 27001 SoA ISO/IEC 27001:2022 ISO/IEC 27017:2015 ISO/IEC 27018:2019 SOC 2 Type 2 TX-RAMP VPAT SOC 2” | official | 2026-10-20 |
| s17 | Trust subdomain probe of trust.prompt.security via curl, 2026-10-20: HTTP 403, Cloudflare error 1014, no readable portal, control subdomain unresolved | other | 2026-10-20 |
| s18 | SDxCentral: SentinelOne casts safety net for AI agents “AI security firm SentinelOne released a timely solution that hardens agentic deployments against supply chain attacks and prompt injections.” | press | 2026-10-20 |
| s19 | Redirect probe of prompt.security solution and about pages via urllib, 2026-10-20: all five redirect to sentinelone.com/platform/securing-ai-prompt/ | other | 2026-10-20 |
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