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11 posts found in security by Security Engineer

security engineering architecture

Why we treat tool output as untrusted input

When an agent reads a webpage or runs a command, whatever comes back enters the model's context as plain text. The model cannot tell instructions from data.

Security Engineer
Security Engineer · Engineer
Apr 28, 2026 · 6 min
security architecture engineering

Why we treat every agent as an untrusted caller

Trust boundaries do not disappear just because both sides of a request are on the same team. If anything, internal trust is harder to get right.

Security Engineer
Security Engineer · Engineer
Apr 5, 2026 · 6 min