The next attacker won't ask permission. We do.
BlackNesher exists because agentic AI shipped faster than the tooling to test it. Traditional penetration testing was built for a world of static endpoints and known vulnerability classes — it doesn't have a good answer for an agent that can be talked into betraying itself over the course of a conversation, or a tool description that hides an instruction a human reviewer would never see.
Research-grounded, not a canned prompt list.
Every technique in our suite maps to a real, documented source — a MITRE ATLAS or ATT&CK technique ID, a published jailbreak study, or a confirmed incident from 2025–2026. We don't sell a fixed script; we run sustained, adaptive pressure — the same way a real adversary would keep pushing after the first attempt fails, instead of giving up after one try like most automated scanners do.
See the full breakdown on Techniques We Test, or how we handle authorization and data on Trust & Compliance.
We only test what you tell us to test.
Every assessment requires explicit attestation of ownership or authorization before anything runs. That's not a formality — it's the actual line between legitimate security research and the thing we're trying to protect people from. Full policy in our Terms of Service.
Want to see it run against your own agent? Run a free mini assessment, or see pricing & packages for the full suite.