What do Reflex Security and Tenzai sell?

Reflex Security sells Reflex. Tenzai sells Tenzai.

Are Reflex Security and Tenzai in the same category?

Yes. Breach simulation and automated pen-testing is the primary category of both on CISO Tribune.

Who are Reflex Security and Tenzai sold to?

Its pages describe an application security team that tests APIs reaching PCI-scoped and critical systems.

Vendor comparison · 2 companies

Reflex Security vs Tenzai

Reflex Security says a breach cannot be controlled, and that a team cannot pick the day, the attacker or the exploit. Tenzai sells an AI agentic penetration testing platform that hacks, exploits and fixes vulnerabilities across enterprise software. CISO Tribune files both under Breach simulation and automated pen-testing. 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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Reflex Security vs Tenzai: Products, Customers and Funding Compared
What it sells
	Reflex SecurityReflex Security says a breach cannot be controlled, and that a team cannot pick the day, the attacker or the exploit.reflexsecurity.io	TenzaiTenzai sells an AI agentic penetration testing platform that hacks, exploits and fixes vulnerabilities across enterprise software.tenzai.com
What it sells	Reflex^[1][2][3]A crisis simulation platform that builds a live crisis from a team's real environment and adapts to each decision the team makes.	Tenzai^[1][3][4][5]An AI agentic penetration testing platform for enterprise software. It discovers exploitable attack chains across web app, mobile, AI, external and internal network attack surfaces.
Categories
Categories	Breach simulation and automated pen-testing (primary category) Incident response and forensics Security awareness training	Breach simulation and automated pen-testing (primary category) Penetration testing and red team services
Headquarters
Headquarters	Not stated on its pages	Not stated on its pages
Founded
Founded	Not stated on its pages	2025^[2][4][5]
Ownership and funding
Ownership and funding	Not stated on its pages	Privately held^[3]
Named customers
Named customers	Not stated on its pages	Not stated on its pages
Recent news
Recent news	Not stated on its pages	Not stated on its pages
G2 and Gartner Peer Insights
G2 and Gartner Peer Insights	G2: listed, seen November 10, 2026^[4] Gartner Peer Insights: Not stated on its pages	G2: Not stated on its pages Gartner Peer Insights: Not stated on its pages
Who it fits
Who it fits	Not written yet	Its pages describe an application security team that tests APIs reaching PCI-scoped and critical systems. Tenzai is also described as a way for teams to verify scanner and bug-bounty findings and gather evidence for follow-up. Security teams can match sets of frontier and open-weight models to each test type or application risk level.
Last verified
Last verified	November 5, 2026	November 8, 2026

Where they overlap

Breach simulation and automated pen-testing is the primary category of both Reflex Security and Tenzai.

Where they differ, field by field

Reflex Security is also filed under Incident response and forensics and Security awareness training. Tenzai is also filed under Penetration testing and red team services.
Reflex Security lists Reflex. Tenzai lists Tenzai.
Tenzai was founded in 2025.
Tenzai is privately held.

How they differ

CISO Tribune files both Reflex Security and Tenzai under Breach simulation and automated pen-testing as the primary category, but the two sell different things. Reflex Security sells Reflex, a crisis simulation platform that builds a live crisis from a team's real environment and adapts to each decision the team makes. In a Reflex exercise, the team works a live breach while an adaptive adversary and pressured stakeholders push back in real time, and Reflex tests breach coordination across technical, legal and executive teams. Reflex also produces an after-action report the moment the team finishes the exercise.

Tenzai sells an AI agentic penetration testing platform for enterprise software. It discovers exploitable attack chains across web app, mobile, AI, external and internal network attack surfaces. Tenzai starts autonomous tests in black, gray or white box modes, and it offers step-by-step guidance, coding-assistant prompts and ticket creation for remediation. CISO Tribune also files Tenzai under Penetration testing and red team services, while it files Reflex Security under Incident response and forensics and Security awareness training.

Tenzai is an Israeli AI security startup founded in 2025, and it is privately held. Greylock Partners, Battery Ventures and Lux Capital back Tenzai, which has $75 million in seed funding. Tenzai has made a formal expansion into network security. Tenzai deploys WAF rule mitigations and guides permanent remediation through security platforms including Akamai Technologies.

What it sells: Reflex Security

What Reflex does^[1][2][3]: Reflex builds a tailored scenario in minutes, catered to the real environment, tools and threats of the team. The team works a live breach while an adaptive adversary and pressured stakeholders push back in real time. AI agents play every side of the breach and react to each call the team makes.

What it sells: Tenzai

What Tenzai does^[1][3][4][5]: Tenzai's agents are engineered to learn the business purpose and workflows of applications. Tenzai starts autonomous tests in black, gray or white box modes. Tenzai blocks exploitation with a hardened WAF rule that is validated for the customer's environment, ahead of a permanent fix. Tenzai offers step-by-step guidance, coding-assistant prompts and ticket creation for remediation.

Questions about Reflex Security and Tenzai

What do Reflex Security and Tenzai sell?: Reflex Security sells Reflex. Tenzai sells Tenzai.
Are Reflex Security and Tenzai in the same category?: Yes. Breach simulation and automated pen-testing is the primary category of both on CISO Tribune.
When were Reflex Security and Tenzai founded?: Tenzai was founded in 2025.
Who owns Reflex Security and Tenzai?: Tenzai is privately held.
Who are Reflex Security and Tenzai sold to?: Its pages describe an application security team that tests APIs reaching PCI-scoped and critical systems.

About Reflex Security

Reflex Security says a breach cannot be controlled, and that a team cannot pick the day, the attacker or the exploit. Reflex Security says a team's response is the only part of a breach that the team owns. Reflex Security says incident training usually means a traditional tabletop exercise made up of slides, a facilitator and a room.^[1][2][3]

Reflex lets a team describe the incident, or start from what Reflex already knows about the team. Reflex builds a tailored scenario in minutes, catered to the real environment, tools and threats of the team. Reflex users pick a threat, and Reflex handles the prep and the paperwork.^[3]

In a Reflex exercise, the team works a live breach while an adaptive adversary and pressured stakeholders push back in real time. Reflex tests breach coordination across technical, legal and executive teams.^[3]

Reflex produces an after-action report the moment the team finishes the exercise.^[2][3]

Reflex Security on the record

About Tenzai

Tenzai sells an AI agentic penetration testing platform that hacks, exploits and fixes vulnerabilities across enterprise software. Tenzai discovers attack surfaces, chains weaknesses and produces reproducible exploits. Tenzai is an Israeli AI security startup founded in 2025.

Tenzai was founded in 2025 by cybersecurity veterans Pavel Gurvich, Ariel Zeitlin, Ofri Ziv, Itamar Tal and Aner Mazur. Greylock Partners, Battery Ventures and Lux Capital back Tenzai, with Asheem Chandna of Greylock and Scott Tobin of Battery on the board. Tenzai has $75 million in seed funding.^[1]

Tenzai's agents are engineered to learn the business purpose and workflows of applications. Tenzai starts autonomous tests in black, gray or white box modes. Tenzai tailors each test to the customer's goals, guidelines and organizational context. Tenzai shows the reasoning, assumptions and evidence gathered at every step of a test. Tenzai applies layered guardrails that enforce scope at the network level and check every action, following the customer's rules of engagement. Tenzai learns the customer's environment and the team's input from past runs. Tenzai finds business logic vulnerabilities and complex attack chains.

Tenzai discovers exploitable attack chains across web app, mobile, AI, external and internal network attack surfaces. For web apps, Tenzai traces attack paths from the browser through server-side logic to the database. For mobile apps, Tenzai tests Android apps on emulated devices to find runtime vulnerabilities. Tenzai applies static analysis to Android and iOS apps to uncover mobile attack surface. Tenzai tests MCP tools for poisoning, unauthorized access and exploitable inputs.

Tenzai looks for exploitable gaps in how APIs handle identities, permissions and multi-step workflows. For external networks, Tenzai continuously tracks internet-facing assets, starting from domains and public IP ranges.

Tenzai blocks exploitation with a hardened WAF rule that is validated for the customer's environment, ahead of a permanent fix. Tenzai offers step-by-step guidance, coding-assistant prompts and ticket creation for remediation. Tenzai guides the permanent fix and re-tests it. Tenzai deploys WAF rule mitigations and guides permanent remediation through security platforms including Akamai Technologies. Tenzai has made a formal expansion into network security.

Tenzai checks every update in an app, and only what has changed, with incremental runs. Tenzai makes scanner and bug-bounty findings actionable by verifying exploitability and gathering evidence for follow-up. Tenzai curates and benchmarks sets of frontier and open-weight models that security teams can match to each test type or application risk level.^[1]

Tenzai on the record

Sources

Reflex Security full record

[1]reflexsecurity.ioReflex Security · reflexsecurity.io · undated page, accessed November 5, 2026 · Tier A
[2]How ai powered tabletop exercises improve incident response readinessReflex Security · reflexsecurity.io · undated page, accessed November 5, 2026 · Tier A
[3]Reflex SecurityReflex Security · undated page, accessed November 10, 2026 · Tier A
[4]Reflex Security Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

Tenzai full record

[1]Ahead partners with tenzai to strengthen cyber resilience with ai enabled penetration testingTenzai · tenzai.com · published July 23, 2026 · Tier A
[2]tenzai.comTenzai · tenzai.com · undated page, accessed November 8, 2026 · Tier A
[3]Tenzai: Your ultimate AI hacker teammateTenzai · undated page, accessed November 8, 2026 · Tier A
[4]About Tenzai | AI Hacker for Autonomous PentestingTenzai · undated page, accessed November 10, 2026 · Tier A
[5]Tenzai | AI Hacker for EnterpriseTenzai · undated page, accessed November 10, 2026 · Tier A

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