Credit card fraud can harm your credit score if unauthorized activity is reported to credit bureaus. However, once you report the fraud and it is investigated, the negative impact on your credit score can be reversed. Credit card fraud includes unauthorized use of your card, data breaches, and identity theft. Credit card issuers can assist by canceling the card, investigating the fraud, and updating credit bureau information. If inaccuracies occur in your credit reports due to fraud, you can file disputes with the credit bureaus for resolution.