# Recollect CVC to prevent fraud

You can reduce fraudulent charges on a saved credit card by requiring the cardholder to re-enter their card verification code (CVC). Recollecting the CVC can help [reduce fraud](https://stripe.com/docs/disputes/prevention/verification#cvc-check) because correctly entering the CVC requires that the customer has the physical card in-hand. In addition to fraud prevention, the presence of correct CVCs has also been shown to slightly improve authorization rates.
## Additional Information
* It is possible for charges to be approved by a customer's bank despite there being a CVC mismatch. To block charges that fail the CVC check, you can use [Radar's](https://stripe.com/radar) [built-in rule](https://stripe.com/docs/radar/rules#traditional-bank-checks) to block charges that fail the CVC verification.