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Dear Apple: Add "Disappearing Messages" to iMessage

This is a cryptography blog and I always feel the need to apologize for any post that isn’t “straight cryptography.” I’m actually getting a little tired of apologizing for i…

Many of my friends are Federal employees or work for contractors, and they’re terrified that they’re going to lose their job based on speech they post online. This makes sense because those conversations are supposed to be ephemeral: people are clearly not expecting those text messages to be around in the future, so they’re not as angry if they lose them a few days early. They usually try to avoid me when I do stuff like this — sometimes they mention lawyers — but when I’m annoying enough (and I catch them in situations where exit is impossible) I can occasionally get them to answer my questions.

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