Agent discovery and AI posture · #3 by signal score
Apex Security
Discovery and governance of how employees and agents use enterprise AI platforms. Acquired by Tenable in 2025; the product now ships as Tenable One AI Exposure.
Acquired by Tenable, announced 2025-05-29, closed 2025-06-17 ($47.8M, per SEC filing). Now sold as Tenable One AI Exposure.
10Signal score / 100
- Capital
- 0/35
- Product
- 10/25
- Standards
- 0/20(not yet assessed)
- Momentum
- 0/20
Identity primitives
| Agent as a first-class identity | No public claim found |
| On-behalf-of token exchange | Not checked |
| Cross App Access (ID-JAG) | Not checked |
| Asynchronous human approval (CIBA) | Not checked |
| MCP authorization conformance | Not checked |
| Fine-grained authorization | Not checked |
| Short-lived, secretless credentials | Not checked |
| Token vault | Not checked |
| Kill switch | No public claim found |
| Per-action audit chain | Not checked |
Company
HQ: IL
Founded: 2023
Funding: $8.6M disclosed, latest Seed
Product: Tenable One AI Exposure
Sources
- Tenable One AI Exposure (vendor, accessed 2026-09-23)
- Tenable announces intent to acquire Apex Security (press-release, accessed 2026-09-23)
- Tenable acquires Sam Altman-backed Apex for over $105 million to boost AI security (trade-press, accessed 2026-09-23)
- Tenable Holdings, Inc. Form 10-K for the year ended December 31, 2025 (sec, accessed 2026-09-23)
Last verified 2026-09-23.