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by csixty4 4037 days ago
> I hear folks say that, but don't encounter it in the wild. Maybe once in 20 years so far.

It was the cause of the "goto fail" SSL bug that affected both of Apple's operating systems last year: https://nakedsecurity.sophos.com/2014/02/24/anatomy-of-a-got...

So I'd say it's rare, but it happens. And when it happens, the effects can be pretty big.