Xerox copier could be replacing numbers in your documents (2013)(theverge.com)
theverge.com
Xerox copier could be replacing numbers in your documents (2013)
https://www.theverge.com/2013/8/6/4594482/xerox-copiers-randomly-replacing-numbers-in-documents
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Original discussion: https://news.ycombinator.com/item?id=6156238
The actual article: http://www.dkriesel.com/en/blog/2013/0802_xerox-workcentres_...
The talk gives a lot of background about how he discovered the bug, how it works and the reaction by Xerox. It's a must have seen talk for anyone who cares about security.
https://media.ccc.de/v/31c3_-_6558_-_de_-_saal_g_-_201412282...