Web service developers have trouble dealing with humans, and I’m not just talking about getting dates. If you issue a certificate to a human, he’ll repave his machine the next day and lose his private key. If you give him a smartcard, he’ll leave it at home. If you ask him to remember a password, he’ll choose a trivial one. If you ask him to remember a better password, he’ll write it down on a sticky note on his monitor. There’s just no way to win. But so often we must bite the bullet and build systems that cater to this imperfect species.
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