Black Hat USA 2026 Turns Into an Agent-Containment Product Launch: Zero Networks, Airlock, Acalvio, Astelia All Ship the Same Week

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Four vendors independently launched agent-restriction products at Black Hat on August 4: Zero Networks' Least Agency Enforcement (identity-based microsegmentation and just-in-time MFA limiting what agents may access and act on), Airlock Digital's Agentic AI Control & Governance (command- and session-level endpoint visibility for trusted agents), Acalvio's Deception Guardrails (honeytokens and decoy tools that flag jailbreak and prompt-injection attempts against agents), and Astelia's agentic reachability-analysis capability. The convergence signals the security market has settled on 'constrain the agent's authority' rather than 'detect the malicious prompt' as the primary control.