CISO Tribune

Vendor comparison · 2 companies

Assail vs Cequence Security

Assail sells Ares, an autonomous offensive security platform that tests applications, APIs, mobile apps and AI systems and shows what an attacker could actually reach. Cequence Security sells a single platform that combines agentic AI governance, API security, bot defense and web app protection. CISO Tribune files both under API security. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Assail
  • Cequence Security
Assail vs Cequence Security: Products, Customers and Funding Compared
AssailAssail sells Ares, an autonomous offensive security platform that tests applications, APIs, mobile apps and AI systems and shows what an attacker could actually reach.assailai.comCequence SecurityCequence Security sells a single platform that combines agentic AI governance, API security, bot defense and web app protection.cequence.ai
What it sells
  • Ares[1][3][4][5][6][7][9][10][11][12]Continuous autonomous red teaming across web applications, APIs, and mobile apps.
  • Reaper[3]Autonomous offensive cyber operations built for military, federal, and intelligence missions.
  • Assail Anywhere[3]Deployment option for the entire platform, including the AI model.
  • Cequence API Security[7][12]Discovers, monitors and tests APIs.
  • Cequence AI Gateway[8]Contains agents and governs their actions in real time.
Categories
Headquarters
Not stated on its pagesSunnyvale, United States
Founded
Not stated on its pages2015[2]
Ownership and funding
Privately heldPrivately held[4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • November 4, 2026Assail, Inc. announced Cassandra, a proactive AI agent integrated into its Ares platform, along with expanded threat modeling capabilities tied to autonomous security testing.[11]
  • July 7, 2026Assail Inc. launched Sidewinder, a rebuilt second-generation version of its Ares offensive security platform running on a new 31 billion-parameter model.[12]
  • October 7, 2026Cequence Security launched Agent Trust, a capability in its Application and API Protection that verifies AI agents presenting an identity and detects those that do not.[18]
  • August 6, 2026Cequence Security announced that NTT DOCOMO has deployed its application and API protection platform.[16]
  • June 23, 2026Cequence Security launched two new capabilities, Intent Graph and Biometric Check, for bot defense across web, mobile, API and agentic AI traffic.[17]
  • April 28, 2026Cequence Security announced general availability of Agent Personas in its AI Gateway, giving enterprises control over what AI agents are permitted to do.[15]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 3, 2026[4]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Assail sells mainly to security teams in manufacturing, financial services, federal and state government, automotive, retail, and defense. Its industry pages address manufacturers, banks and fintech firms, government agencies, vehicle makers, retailers, and defense programs. Assail also says it supports on-premises, air-gapped, own-cloud, and SaaS deployment for organizations that need to keep data under their control.From its own pages, Cequence sells mainly to organizations that run applications and APIs and need to protect them against attacks, business logic abuse and fraud. Financial services organizations are a named audience, including those with digital banking, payment systems and open banking initiatives. Organizations that store, process or transmit credit card information are addressed through its PCI DSS content. Modern retailers with AI-powered shopping experiences and agentic checkout flows are another described audience. Enterprises whose teams delegate work to AI agents with access to internal apps, data and systems are a further stated audience.
Last verified
October 21, 2026November 2, 2026

Where they overlap

  • Assail and Cequence Security are both filed under API security.
  • Both are privately held.

Where they differ, field by field

  • Assail's primary category is Breach simulation and automated pen-testing; Cequence Security's is API security.
  • Assail is also filed under Mobile security. Cequence Security is also filed under Bot and abuse management and WAF and WAAP.
  • Assail lists Ares, Reaper and Assail Anywhere. Cequence Security lists Cequence API Security and Cequence AI Gateway.
  • Cequence Security is headquartered in Sunnyvale, United States.
  • Cequence Security was founded in 2015.

What it sells: Assail

What Ares does[1][3][4][5][6][7][9][10][11][12]
Ares uses coordinated AI agents to discover weaknesses and validate what an attacker could actually reach. It tests authenticated applications through the existing identity provider and tracks changes across known and shadow APIs. Ares delivers the evidence behind each confirmed risk.
What Reaper does[3]
Assail describes Reaper as built for military, federal, and intelligence missions. Assail has expanded Reaper's sovereign deployment architecture to AWS GovCloud and Google Cloud Assured Workloads.

What it sells: Cequence Security

What Cequence API Security does[7][12]
Cequence API Security is an AI-first solution that discovers, monitors and tests APIs. Cequence API Security assesses risks that can lead to compliance or governance issues, data loss and business disruption. Cequence API Security discovers internal, external and third-party APIs. Cequence API Security ships more than 200 pre-built risk rules mapped to 25 global frameworks.
What Cequence AI Gateway does[8]
Cequence AI Gateway contains every agent wherever it runs and governs its actions in real time, across any model, MCP server, API or application, at enterprise scale. Agent Personas scope every agent to the tools, APIs, skills and LLMs its job requires. Prompt Guard detects prompt injection, override instructions and safety filter bypass attempts before they reach a model or tool.

Questions about Assail and Cequence Security

What do Assail and Cequence Security sell?
Assail sells Ares, Reaper and Assail Anywhere. Cequence Security sells Cequence API Security and Cequence AI Gateway.
Are Assail and Cequence Security in the same category?
They share API security. Assail's primary category is Breach simulation and automated pen-testing and Cequence Security's is API security.
Where are Assail and Cequence Security headquartered?
Cequence Security is headquartered in Sunnyvale, United States.
When were Assail and Cequence Security founded?
Cequence Security was founded in 2015.
Who owns Assail and Cequence Security?
Assail is privately held. Cequence Security is privately held.
Who are Assail and Cequence Security sold to?
From its own pages, Assail sells mainly to security teams in manufacturing, financial services, federal and state government, automotive, retail, and defense. From its own pages, Cequence sells mainly to organizations that run applications and APIs and need to protect them against attacks, business logic abuse and fraud.
What have Assail and Cequence Security announced recently?
November 4, 2026: Assail, Inc. announced Cassandra, a proactive AI agent integrated into its Ares platform, along with expanded threat modeling capabilities tied to autonomous security testing. October 7, 2026: Cequence Security launched Agent Trust, a capability in its Application and API Protection that verifies AI agents presenting an identity and detects those that do not.

About Assail

Assail sells Ares, an autonomous offensive security platform that tests applications, APIs, mobile apps and AI systems and shows what an attacker could actually reach.[1]

Assail says Ares continuously tests applications, APIs, mobile apps, and AI systems as they change. Ares follows attack paths, exploits weaknesses, and proves what an attacker could actually reach. Coordinated AI agents extend testing capacity, and Ares tests authenticated applications through the customer's existing identity provider. Ares also tracks changes across known and shadow APIs and delivers the evidence behind each confirmed risk.[3]

Assail describes Ares as combining autonomous red teaming, attack surface management, and Shadow AI discovery across web, API, mobile, and supported AI environments, with applicable MITRE ATLAS coverage. The Ares platform is powered by Assail's domain-adapted model for security reasoning and tool use.[3][7]

On deployment, Assail says Ares can run within the customer's own infrastructure, even in disconnected environments. With Assail Anywhere, the entire platform, including the AI model, deploys on-premises, inside isolated and air-gapped networks, in the customer's own cloud, or through Assail's SaaS. Assail has also announced that it expanded Reaper's sovereign deployment architecture to AWS GovCloud and Google Cloud Assured Workloads.[3]

Assail names Ares, Reaper, and Scorpion as the products taken to the fight. Reaper is described as autonomous offensive cyber operations built for military, federal, and intelligence missions.[3]

Assail publishes industry pages for manufacturing, financial services, federal and state government, automotive, retail, and defense. In manufacturing, Ares validates systems such as ERP, MES, PLM, supplier portals, industrial APIs, and connected products. In financial services, Ares validates APIs, payment rails, mobile banking apps, and open banking integrations. For retail, Ares validates e-commerce web apps, mobile shopping apps, loyalty APIs, and gift card platforms. In automotive it covers telematics APIs, OTA infrastructure, and mobile companion apps.[4][5][6][9][10]

Assail says its team brings 26 years of offensive security experience. Assail also publishes original research on attack techniques and the exploitation of AI and API surfaces. A customer, Branch, says Ares helps its security team increase penetration testing frequency and validate remediations faster.[1][2][3][4][5][6][8]

Assail on the record

Sources

Assail full record

  1. [1]assailai.comAssail · assailai.com · undated page, accessed October 21, 2026 · Tier A
  2. [2]Press releasesAssail · assailai.com · undated page, accessed October 21, 2026 · Tier A
  3. [3]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  4. [4]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  5. [5]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  6. [6]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  7. [7]Automotive | AssailAssail · undated page, accessed November 4, 2026 · Tier A
  8. [8]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  9. [9]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  10. [10]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  11. [11]Assail Introduces Cassandra, a Proactive AI Agent Connecting Threat Modeling with Autonomous Security TestingPR Newswire · published November 4, 2026 · Tier A
  12. [12]Assail launches Sidewinder, an offensive security AI that fixes its own mistakesSiliconANGLE · published July 7, 2026 · Tier B

Cequence Security full record

  1. [1]cequence.aiCequence Security · cequence.ai · undated page, accessed September 27, 2026 · Tier A
  2. [2]Cequence security opens emea headquarters and names key execs to accelerate protection of hyper connected enterprises across emeaCequence Security · cequence.ai · published December 23, 2024 · Tier A
  3. [3]PlatformCequence Security · cequence.ai · published July 22, 2026 · Tier A
  4. [4]Cequence Security Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 23, 2026 · Tier C
  5. [5]Application & API SecurityCequence Security · undated page, accessed November 3, 2026 · Tier A
  6. [6]The Cequence Platform – Securing Applications, APIs, and AICequence Security · undated page, accessed November 3, 2026 · Tier A
  7. [7]API Security Tool | Posture Management, Compliance & TestingCequence Security · undated page, accessed November 3, 2026 · Tier A
  8. [8]AI Gateway: The missing agentic AI security and governance layerCequence Security · undated page, accessed November 3, 2026 · Tier A
  9. [9]AI Security Tool for Generative and Agentic AI | Cequence SecurityCequence Security · undated page, accessed November 3, 2026 · Tier A
  10. [10]Business Logic Vulnerabilities | Prevent Logic Abuse | CequenceCequence Security · undated page, accessed November 3, 2026 · Tier A
  11. [11]BOLA Vulnerability Protection & Attack Prevention | CequenceCequence Security · undated page, accessed November 3, 2026 · Tier A
  12. [12]PCI DSS 4.0 Compliance | Cequence SecurityCequence Security · undated page, accessed November 3, 2026 · Tier A
  13. [13]API Security & Fraud Prevention for Financial Services | Cequence AICequence Security · undated page, accessed November 3, 2026 · Tier A
  14. [14]Agentic AI GovernanceCequence Security · undated page, accessed November 3, 2026 · Tier A
  15. [15]Cequence Launches AI Gateway With Secure Agent PersonasCequence Security · published April 28, 2026 · Tier A
  16. [16]Cequence Security Deployment Expands to NTT DOCOMOCequence Security · published August 6, 2026 · Tier A
  17. [17]Cequence Launches Intent Graph for AI Agent SecurityCequence Security · published June 23, 2026 · Tier A
  18. [18]Meta's Muse Reached More Than Half of Customers Cequence Studied in Two Weeks Without Identifying Itself as an AI AgentGlobeNewswire · published October 7, 2026 · Tier A

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