You may think your home mailbox is a safe receptacle for outgoing mail, think again. Thieves use mailboxes to gather your personal information on checking accounts as well as credit cards. Take mail containing payments with checks to Post Office collection boxes. Always gather your mail daily and if you will be gone, have the Post Office hold your mail. If routine bills do not arrive at normal intervals, contact the creditor; a thief may have falsely changed your address to divert your information.