Lesson from Tor hack: anonymity and privacy aren't the same
As the name implies, Alcoholics Anonymous meetings are anonymous. You don't have to sign anything, show ID or even reveal your real name. But the meetings are not private. Anyone is free to attend. And anyone is free to recognize you: by your face, by your voice, by the stories you tell. Anonymity is not the same as privacy.
That's obvious and uninteresting, but many of us seem to forget it when we're on a computer. We think "it's secure," and forget that secure can mean many different things.
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