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2.3 Password Management

Your password is the only way Kerberos has of verifying your identity. If someone finds out your password, that person can masquerade as you—send email that comes from you, read, edit, or delete your files, or log into other hosts as you—and no one will be able to tell the difference. For this reason, it is important that you choose a good password (see Password Advice), and keep it secret. If you need to give access to your account to someone else, you can do so through Kerberos. (See Granting Access to Your Account.) You should never tell your password to anyone, including your system administrator, for any reason. You should change your password frequently, particularly any time you think someone may have found out what it is.