[danjoc]

Not just windows DRM files. Specifying a special codec is enough to trigger an auto download attempt in certain players. You can even embed smil animations in quicktime files to trigger content downloads.

This is why the feds want to redistribute child porn for weeks at a time. They can't break tor to de-anonymize users. They need to distribute files with beacons in them for this plan to work. Never mind that the police have become the child porn traffickers.

http://disinfo.com/2016/01/why-did-the-fbi-operate-a-child-p...