Review your bank, credit card and financial statements regularly to identify unauthorized activity. This is one of the most effective ways to quickly detect if your bank account, credit card or identity has been compromised.
If you lose your credit card, call the card issuer immediately. Follow up this call with a letter containing your card number, the date the card was missing, and the date you reported the loss. Once you report the lost card you are not responsible for any unauthorized charges.
If you are unaware of the fraudulent charges until your statement arrives, your liability is limited to $50 per card by federal law. You may lose these legal protections if you negligently fail to report unauthorized charges in a timely manner.