CNET: How to Make Sure Your Private Signal Messages Aren’t Still Lurking on Your Phone

“The loophole presents a security concern for iPhone owners who assume that their messages are forever private if they use an encrypted messaging service, and according to John Davisson, deputy director of the Electronic Privacy Information Center, there’s no clear reason why those messages should still be there after the app was deleted.”

“‘Someone who deletes a secure messaging app reasonably expects that their messages won’t hang around indefinitely or be retrievable if the device falls into untrusted hands,’ Davisson told CNET in an email. ‘Apple owes it to the public to fix this problem, and developers should consider warning their users of the risk until that happens.'”

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