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X is now offering me end-to-end encrypted chat — you probably shouldn’t trust it yet


X's new encrypted messaging feature, XChat, has some red flags.

The company claims the new communication feature is end-to-end encrypted, meaning messages exchanged on it can only be read by the sender and their receiver, and — in theory — no one else, including X, can access them. Matthew Garrett, a security researcher who published a blog post about XChat in June, when X announced the new service and slowly started rolling it out, wrote that if the company doesn’t use what are called Hardware Security Modules, or HSMs, to store the keys, then the company could tamper with the keys and potentially decrypt messages. The second red flag, in the X Chat support page, is that the current implementation of the service could allow “a malicious insider or X itself” to compromise encrypted conversations.

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