Signal's self-destructing messages linger on Macs
Signal Messenger's self-destructing messages are saved by the Apple Mac operating system's notification feature.
Why it matters: The end-to-end encrypted Signal is as close to a gold standard in secure chat as you will find among privacy-conscious users. But that was in part because the messages weren't stored beyond pre-designated time limits. Now, every old message is fair game for hackers again, provided it was sent to someone using a Mac version of Signal.