“We contractually implement DRM and forensic watermarking, but how effective are these solutions against modern piracy? This talk dissects common vulnerabilities, from Widevine L3 key extraction to the limitations of A/B segment watermarking against determined adversaries. We’ll move beyond checkbox security and detail practical, alternative protection strategies. Topics include implementing short-lived, signed Common Access Tokens(CAT) for token authentication, building rapid revocation systems, and leveraging CDN access logs with player analytics to build real-time anomaly detection for credential sharing and illegal redistribution. This talk was presented at Demuxed 2025 in London, a conference by and for engineers working in video. Every year we host a conference with lots of great new talks like this – learn more at https://demuxed.com”