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Topic · 3 articles
Data Exfiltration: articles and guides
3 PlayCISO articles on data exfiltration, newest first. The most recent is “EchoLeak CVE-2025-32711: Copilot Zero-Click Chain”.
EchoLeak CVE-2025-32711: Copilot Zero-Click Chain
Teardown of EchoLeak (CVE-2025-32711): the four-bypass Copilot email chain, Microsoft's server-side fix, and what to check in your AI assistants.
November 4, 2026
Hidden Proxy Servers Explained: Risks and Detection
A clear explainer on hidden and anonymous proxy servers: what they are, how attackers and insiders use them to evade security controls, the data-exfiltration and command-and-control risks they create, and the egress filtering and detection techniques that surface them.
October 23, 2026
Enter, Evade, Escape: Anatomy of AI Agent Hijacking
From RovoBlast to EchoLeak — a single click can now turn your enterprise AI assistant into a data exfiltration tool. Here is how the attacks work, a timeline of every known incident, and what security leaders should do about it.
August 10, 2026