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A comment on 800M Email Addresses Leaked Online by Email Verification Service. Parent comment

Re:800M Email Addresses Leaked Online by Email Verification ... by quickthrower2 on Thursday March 07, 2019 @10:32PM (#19334868)
Not really, in the event of a leak, two hashed passwords leaks less information than a hashed password and an email address.

Why have 2 not 1. Well one of them has to be globally unique on the site, the other has to be hard to guess. Two different requirements.

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Re:800M Email Addresses Leaked Online by Email Verification ... by groestl on Friday March 08, 2019 @12:16AM (#19335291)
You can say that for sufficiently high values of hard, "hard to guess" implies "globally unique".
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