Constantly changing passwords

I know it's supposed to be best practice to force users to change their passwords regularly, but how are we supposed to remember them? I wonder whether anyone has done any research into passwords becoming lower quality as people are asked to change them. It just becomes increasingly difficult to think up memorable things that are not obvious, or look for ways of fooling the computer into letting you have a similar password every month.

Originally posted at 2005-07-04 14:24:38+00:00. Automatically generated from the original post : apologies for the errors introduced.

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