A person’s personal information is vital to their safety and well being in life these days and identity theft is a major problem across the country. One way to protect yourself from identity theft is locking residential mailboxes from the public. Having a mailbox that locks will keep unwanted guests from browsing through and stealing your mail. Tampering with the mail is a federal offense in the United States, which comes with lengthy prison terms if convicted. Plenty of important and confidential documents arrive in your mailbox each day that have your personal information on them. Documents such as stock options, bank accounts, insurance policies, paychecks, wills and trusts are sent through the mail each day.