The problem egress capture solves
Most AI governance products require either an SDK installed in every application or an explicit base-URL change. Both miss the largest source of enterprise AI risk: ad-hoc usage in browsers, embedded AI features in SaaS, and unsanctioned API keys that never touch the sanctioned path.
Egress capture solves this by intercepting at the network layer — every HTTPS connection to a known AI provider domain is decrypted, inspected, and logged regardless of which application initiated it.
Capture methods
There are three production-grade ways to deploy egress capture, often combined:
PAC-file rollout. A managed Proxy Auto-Configuration file directs all corporate browsers and applications to route AI-bound traffic through the capture node. Deployed via Intune, Jamf, or Group Policy.
Transparent HTTPS interception via corporate root CA. The capture node terminates TLS using the corporate CA already installed on managed devices, inspects the cleartext, then re-establishes TLS to the upstream provider. Invisible to the application.
Forward proxy with explicit configuration. Applications that respect HTTP_PROXY environment variables are routed explicitly. Lower coverage, but useful for backend agents.
What gets captured
A correctly configured egress capture surfaces: the upstream provider, the requesting user (mapped via authenticated proxy or identity-aware connector), the full prompt and response (with sensitive data redacted), the token count and cost, and any DLP findings. This is the data plane that powers shadow-AI discovery, per-user attribution, and policy enforcement.
Frequently Asked Questions
Is egress capture the same as a CASB?
No. A CASB classifies which SaaS apps are in use; egress capture decrypts and inspects the AI traffic content inside those apps — the prompts, responses, and tokens — and applies AI-specific DLP and policy.
Does egress capture require an endpoint agent?
Not for on-network managed devices. Off-network laptops and BYOD devices require either a VPN that forces traffic through the capture node or a managed browser extension to cover browser-based AI usage.