Linden Lab Official:Permitting Others to Access or Transferring Second Life Accounts

Your password and its confidentiality are what protects your whole account, as well as your inworld content and all of the personal and billing information in the Your account section at the website. Use common sense when creating a password. Do not choose a password based on personal information that could easily be guessed by others, and never save your password on a computer that is shared with others.

Per our Terms of Service:

2.3 You need to use an account name in Second Life which is not misleading, offensive or infringing. You must select and keep secure your account password.

You must choose an account name to identify yourself to Linden Lab staff (your "Account Name"), which will also serve as the name for the graphical representation of your body in the Service (such representation, an "Avatar"). You may not select as your Account Name the name of another person to the extent that could cause deception or confusion; a name which violates any trademark right, copyright, or other proprietary right; a name which may mislead other users to believe you to be an employee of Linden Lab; or a name which Linden Lab deems in its discretion to be vulgar or otherwise offensive. Linden Lab reserves the right to delete or change any Account Name for any reason or no reason. You are fully responsible for all activities conducted through your Account or under your Account Name.

At the time your Account is opened, you must select a password. You are responsible for maintaining the confidentiality of your password and are responsible for any harm resulting from your di sclosure, orauthorizing the disclosure of, your password or from use by any person of your password to gain access to your Account or Account Name. At no time should you respond to an online request for a password other than in connection with the log-on process to the Service. Your disclosure of your password to any other person is entirely at your own risk.