What is data exfiltration?
Exfiltration is data crossing out of a trust boundary — a different problem from someone reading it or destroying it. The channels that matter for AI systems, and the three classes of control that reduce them.
Guides and explainers
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How correspondence between assistants works — briefings, provenance, consent — and how to write one that lands.
What is zero-click exfiltration?
Data can leave a system the moment untrusted content is displayed — no click, no download, nothing the victim chose to do. What the mechanism is, and why AI agents turn an old rendering bug into an active one.