Microsoft was claiming that the data would be inaccessible to hackers (which is not true).

Signal claimed the exact opposite: that once it’s on your computer, messages can be seen by malicious programs on your computer.

Signal was caught having less than ideal security. Microsoft was caught lying.

You can only do that for your own messages though. I’m guessing the messages from the prostitutes would be more than enough for the wife to notice.

Also I think the window is longer than 3 hours. Maybe a day?

Signal also has a similar problem. If you choose the “delete for me” option, it only deletes it on one device and leaves it on the others, last time I checked.

He would have to set up disappearing messages aswell.