Published at LXer:

As a computer user, you will no doubt have numerous passwords to remember. Some sites put restrictions on the choice of the password. For example, a site may insist on a minimum number of characters, capital letters, numerals, and other characters which make choosing the same password for each site to be impossible. More importantly, there are good security reasons not to duplicate passwords. This inevitably means that individuals will simply have too many passwords to remember. One solution is to keep the passwords in written form. However, this is also highly insecure.

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