Researchers discovered a leak in a popular streaming technique implemented by today’s top video platforms. The technique breaks the original video stored on a streamer’s server into smaller segments holding a few seconds of video. Each video stream has a “download fingerprint”” that is unique enough to create fingerprints for the video streams a user might be watching. An attacker only needs to create a database of fingerprints for streamable video files he wants to keep an eye out. The attack’s success rate is way above similar techniques
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