It's unwise to store an unencrypted password in a cookie.

It's unwise to store anything other than a shortlived session key hash in a cookie, period. See that same article by merlyn.

Update: dws points out that many things are fine to store in a cookie; the user's preferred font size, f.ex. In short, it's fine to store information about the client on the client. You don't want to save anything that controls server side operation in a cookie, though.

Makeshifts last the longest.

In reply to Re^2: Cookie Problem by Aristotle
in thread Cookie Problem by Anonymous Monk

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