Facebook has been accused (again) of tracking user photos through hidden embedded codes. As the social media giant finalizes the terms of its record $5 billion fine, continual privacy headlines will not help it move past the allegations of data misuse.
described this as a"shocking level of tracking," adding that"the take from this is that they can potentially track photos outside of their own platform with a disturbing level of precision about who originally uploaded the photo ."Jusupovic viewed are essentially metadata watermarks that Facebook adds to tag the image with its own coding—those tags can be read later, enabling the"tracking" to take place.
There is no active tracking implied here, the image does not contain a secret beacon of any sort. It is a hidden code that would allow another Facebook or third-party site with the right software to link the image back to its origins—obviously, more metadata can be added as an image travels, which has additional implications. Think of this like the UV marker pens used to mark possessions with zip codes in case they're stolen.
Zack Allen from ZeroFOX told me that"hidden data can be predictably transmitted through social network images with high-fidelity—and AI can hide that data in plain sight, at large-scale, and beyond human visual discernment, making steganalysis and other countermeasures difficult."
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