AI agent security is the cryptographic control, monitoring, and proof of autonomous AI agent behavior. 88% of organizations reported AI security incidents last year. 1 in 8 agent deployments result in data breaches. Only 17% continuously monitor agent-to-agent interactions. API keys are not credentials — they are blanket access with no scoping, no delegation tracking, and no proof. H33 replaces trust-based agent security with cryptographic authority binding, encrypted decisions, and independently verifiable delegation chains.
Autonomous AI agents approve transactions, access patient records, execute trades, and delegate authority to other agents. The security model for all of this is an API key and a prayer.
88% of organizations reported AI security incidents in the last 12 months. 92% of security professionals say AI agents are increasing cyber risk. Yet only 17% continuously monitor agent-to-agent interactions. The gap between agent capability and agent security is widening every quarter.
An API key grants blanket access. It cannot express "read patient records but not modify them" or "this delegation expires in 4 hours." API keys have no scope, no delegation chain, no expiration semantics, and no proof of what was done with the access.
When Agent A delegates to Agent B, and Agent B delegates to Agent C, there is no cryptographic record of the delegation chain. No one can prove who authorized what, when authority was granted, or whether the delegated scope was narrower than the original.
Audit logs show what happened. They cannot prove what didn't happen. For HIPAA, SOX, and GDPR compliance, proving that an agent never accessed out-of-scope data is as critical as proving it accessed in-scope data. Classical logging cannot provide this guarantee.
H33 replaces API keys with Q-Key authority credentials. Every agent operation is PQ-attested. Every delegation is chain-verified. Every scope boundary is cryptographically enforced.
Q-Key authority binding. Each AI agent receives a Q-Key — a post-quantum authority credential that cryptographically binds the agent to a specific scope, delegation chain, and expiration. The Q-Key is signed under three independent PQ families. Every operation the agent performs is attested against the Q-Key's authority scope.
Agent-Zero encrypted decisions. Agent decisions are encrypted under FHE before they are recorded. The agent's reasoning, inputs, and intermediate state are never exposed in plaintext — not to administrators, not to auditors, not to attackers. Only the attested output is visible. This closes the insider threat vector entirely.
Negative authority proofs. H33 can cryptographically prove what an agent did NOT do. ZK-STARK verification demonstrates that an agent never accessed data outside its scope, never exceeded its delegation, and never performed unauthorized operations. For regulated industries, this is the difference between a compliance report and a compliance proof.
Delegation chains. When Agent A delegates to Agent B, the delegation is signed under both agents' Q-Keys with explicit scope narrowing. Agent B can only receive a subset of Agent A's authority. The full chain is independently verifiable and automatically expires.
Agent receives PQ-signed authority credential with explicit scope
Every operation checked against Q-Key authority before execution
Agent reasoning encrypted under FHE — never exposed in plaintext
Operation result attested under three PQ signature families
Full authority lineage independently verifiable by any third party
Each capability addresses a distinct failure mode in autonomous agent security. Together, they replace trust with proof.
Authorization, delegation, and scope control for autonomous AI agents. Cryptographically enforce what an agent can do, who delegated the authority, and when that authority expires.
Post-quantum authority binding replaces API keys. Scoped, delegatable, time-bounded, and signed under three independent PQ families. The agent credential that survives quantum computing.
Every agent operation produces a 74-byte attestation. Prove what the agent did, what data it accessed, and what authority governed the operation. Independently verifiable without contacting H33.
Prove what an agent did NOT do. ZK-STARK proofs demonstrate non-access, non-delegation, and non-execution. Critical for HIPAA, SOX, and GDPR where proving absence is as important as proving presence.
AI agent security is the discipline of cryptographically controlling, monitoring, and proving the behavior of autonomous AI agents. It goes beyond API key authentication to include authority binding (what an agent is allowed to do), delegation chains (who authorized it), scope enforcement (what it cannot do), and decision attestation (proof of what it actually did). Without these controls, AI agents operate on trust alone.
API keys provide blanket access with no scoping, no delegation tracking, and no proof of what was done with the access. An API key cannot express "this agent may read patient records but not modify them" or "this delegation expires in 4 hours." API keys are credentials, not authority. AI agents need cryptographically scoped authority that can be verified, delegated, and revoked at the operation level.
A Q-Key is H33's post-quantum authority credential for AI agents. Unlike API keys, a Q-Key cryptographically binds an agent to a specific authority scope, delegation chain, and expiration. The Q-Key is signed under three independent PQ families (ML-DSA, FALCON, SLH-DSA), making it quantum-resistant. Every operation the agent performs is attested against the Q-Key's authority scope.
A negative authority proof cryptographically proves what an AI agent did NOT do. Traditional audit logs can only show what happened — they cannot prove that something didn't happen. H33's negative authority proofs use ZK-STARK verification to prove that an agent never accessed data outside its scope, never exceeded its delegation, and never performed unauthorized actions. This is critical for regulatory compliance where proving non-access is as important as proving access.
H33 provides cryptographic delegation chains where each agent-to-agent handoff is PQ-attested. When Agent A delegates authority to Agent B, the delegation is signed under both agents' Q-Keys with explicit scope narrowing (Agent B can only receive a subset of Agent A's authority). The full delegation chain is independently verifiable, and authority automatically expires based on time, operation count, or scope boundaries.
See Q-Key authority binding, encrypted agent decisions, and delegation chain verification running live. Your agents, your infrastructure. No commitment required.