Perplexity's NIST Response: Agent Security from Production Scale

Perplexity's formal response to NIST's 2025-0035 RFI documents security observations from operating production agentic systems at millions of users. The core finding: agent architectures fundamentally break code-data separation and authority boundaries, requiring new security primitives beyond user-input filtering. This is the most authoritative industry reference for organizations architecting agent security policy.