Of all the revelations to come out of the 9,000-page data dump of CIA hacking tools, one of the most explosive is the possibility that the spy agency can compromise Signal, WhatsApp, and other encrypted chat apps. If you use those apps, let's be perfectly clear: Nothing in the WikiLeaks docs says the CIA can do that. A close reading of the descriptions of mobile hacking outlined in the documents released by WikiLeaks shows that the CIA has not yet cracked those invaluable encryption tools.

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