Post

nolabs, Inc
@nolabs.ai

How the phantom token pattern works in practice: session-scoped token → localhost proxy → real credential injected outside the sandbox → forwarded over TLS. Scoped to one session. Expires on exit. #AISecurity #infosec

Luke Hinds@lukehinds.bsky.social

API keys in env vars. One prompt injection. One outbound HTTP call. Your key and everything it can touch is gone. We built a phantom token pattern: a credential proxy that lives outside the sandbox, talking to agents only through a seccomp-restricted channel. nono.sh/blog/blog-credential-injection

nono.shCredential Protection for AI Agents: The Phantom Token PatternHow nono uses a credential injection proxy to protect API keys for AI agents.

1 repost1 like

No replies yet.