HackerTube / Video
David Kriesel: Lies, damned lies and scans
Free and Open Source Software Conference (FrOSCon) e.V.
David Kriesel's FrOSCon talk on how Xerox scancopiers, due to JBIG2 compression, silently replaced digits in scanned documents. He walks through how he discovered the bug and why it is so dangerous.
The standard reference whenever HN discusses the Xerox scanner bug or AI and compression that fabricates content.
5 Hacker News mentions · 2020–2026