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Your library or organization should consider adopting the following rules for network passwords:passwords may not be blankpasswords must be seven or more characters longpasswords must use a mixture of letters (upper and lower case), numbers and characterspasswords must be changed on a regular basispasswords must be successively unique (in other words, users shouldn't use the same password repeatedly)passwords must never be written down or posted in an insecure location (such as on a monitor)In addition, consider adding these prohibitions:passwords cannot be the user's name, the name of someone in their family, or their birth datepasswords must not be constructed by adding a numeral or character to the beginning or end of a regular word; this is too easily guessed (e.g."chair1")

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