The independent guardian agent. The fourth A of security.
Three green
checkmarks.
One breach.
Your agents pass authentication, authorization, and accounting, and the workflow across systems is still a breach. Behavry is the fourth A: an independent guardian agent that reconstructs what actually happened and signs it from a record they couldn't touch.
An actor cannot attest to itself.
Verify a real trace yourself, no account →
Every system said yes.
Risk is not a bad action. Risk is composition. Each action below was authorized in isolation. The exfiltration exists only in the sequence, invisible to any single system. Behavry sees the whole chain, and denied the final step.
DECISION TRACE APR-2026-111446Three green checkmarks. One breach.
Platform logs are testimony from the accused. The chain is the evidence.
Security has three A's. The agent era needs a fourth.
Security has always rested on three A's. Authentication: who are you? Authorization: what may you do? Accounting: what did you do?
They were built for a world where the actor was a human or a static service. It lived inside one environment, and the account it kept of itself could be trusted.
Autonomous agents break both assumptions. They act across environments no single vendor owns. And their self-report cannot be trusted, because the actor is the party under examination.
So the agent era needs a fourth A. Attestation: an independent, provable record of what an agent actually did, across every environment it touched.
Behavry is that fourth A. And the only way to deliver it is to not stop at the boundaries between AI environments, which is exactly where every other tool stops.
Guardian agents enforce. Behavry is the one that also proves it.
| The A | The question | Who holds it |
|---|---|---|
| Authentication | Who is the agent? | IAM. Okta, Entra |
| Authorization | What may it do? | Behavry, and a crowded field |
| Accounting | What did it do? | SIEM. Splunk, Datadog |
| Attestation | What did it actually do, and can you prove it? | Only Behavry |
A Fortune 500 will run 150,000+ agents by 2028, up from fewer than 15 in 2025. Source: Gartner.
Gartner's Market Guide for Guardian Agents requires independence from the AI platforms, and requires tamper-evident audit trails. It never fuses them. The word attestation appears zero times in its 33 pages.
Three structural properties. None is a feature.
An actor cannot attest to itself. Behavry signs the record from a control plane the agent, its vendor, and your SIEM cannot reach. It is also why we survive consolidation: the moment an acquirer absorbs an independent attester, it stops being independent.
Every other guardian agent guards one surface. The harm, and the truth, live in the crossing. You have to be in-path across vendors to enforce on the chain, and being in-path across vendors is exactly what lets you prove it.
We decide with an OPA policy engine, fail-closed, no LLM in the decision path. Most guardian agents put an AI in the enforcement path and log their own verdicts. That is one party grading its own work with a probabilistic pen.
One vantage point. Every agent surface.
The surface changes. The Decision Trace does not. MCP clients and IDEs, LLM API proxies, the browser, the Warden desktop proxy, and the SDKs all feed one record. Deployed in hours, SaaS or self-hosted, with no SDK and no agent rewrite.
Every agent action, on every surface, bound to an identity. Nothing reaches your systems anonymously. One complete, structured event stream.
Delegation lineage and behavioral history stitched into intent, not log correlation. This produces the signed Decision Trace, the fourth-A artifact.
Permit, redact, block, or escalate at the boundary, on an OPA policy engine, fail-closed, sub-millisecond. Turned on once the record is trusted. The record is always the lead.
Deterministic. No LLM in the decision path
Not a log. A record.
A log tells you what one system saw. A Decision Trace tells you what actually happened, in a form each stakeholder can verify without trusting Behavry, or you.
One trace spans multiple vendors and tools. 5 actions. 4 systems. 1 external data movement. 3m 18s. The story three separate logs cannot tell.
Each trace is Ed25519-signed and hash-chained into an append-only ledger. Tamper-evident by construction, replayable step by step.
A removed or altered event breaks the chain. Nobody can hand an auditor a curated subset and call it the record.
Who asked whom, on whose authority, all the way back to a human. Authorization over the delegation chain, not just the credential.
An auditor, a regulator, or an underwriter confirms a decision without trusting Behavry and without logging in.
When Behavry blocks a step it denies that one action and lets the agent keep working. A misbehaving agent surfaces as denials and an escalation, not a crash.
ONE RECORD, SIX READERS/CISO explains/CIO·CTO scales/LEGAL defends/BOARD oversees/REGULATORS verify/UNDERWRITERS price
Don't trust our log. Check it.
Verify a real evidence package yourself, in your browser, no account. The record is signed by a control plane the agent could not touch, and anyone you hand it to can confirm it independently.
GET /api/v1/public/verify?hash=<event-hash>
200 OK
{ "verified": true }The hash chain proves completeness, not just integrity. Because the ledger is append-only and every entry carries the previous hash, a removed or altered event breaks the chain. Nobody can hand an auditor a curated subset and call it the record.
Compliance is a byproduct of being the record. Chain-of-custody proof for the EU AI Act, NIST AI RMF, ISO/IEC 42001, and SEC disclosure exports straight to an auditor.
Say yes to autonomous agents. With proof.
Bring a real incident, or borrow one of ours. In thirty minutes we will walk a signed Decision Trace end to end: the chain, the lineage, the verification.