Make a list of all your card numbers, their expiration dates and the phone number you call for each in case it's stolen. Keep this list in a safe place. Don't keep it in your wallet. Consider a card registration plan which will quickly contact each issuer for you should your wallet get stolen.
Cut up expired credit cards.
Sign your name on new and replacement cards the moment you receive them.
If you have duplicate cards, keep them in a safe place.
Keep receipts and carbons with you until after the transactions have appeared on your statement.
Shred old statements and any other purchase documents or records that may have your account number on them before throwing them out.
Never give your account number to an unknown person calling you over the phone. Beware anyone who says you've won a valuable prize and you need to give a credit card number to claim it.
Safeguard your personal information including your social security number, your personal identification number (PIN), your date of birth, mother's maiden name, address and telephone number. Merchants, with the exception of online or offline mail order companies, should never require your address or telephone number.
Do not use credit cards for personal identification. Use your driver's license.
Do not write your card number on any document that is not associated with your account.
Check your monthly statement carefully and report billing errors in writing to your credit issuer as soon as possible.
Report lost or stolen cards as soon as you discover they're missing.
You own your credit card. No one, including family members, can use it without your authorization. Notify the issuer if you become separated or divorced.
Be sure to activate your card immediately upon receipt