One piece of information RFID does not transmit is the CVV (Credit Verification Value) security codes on each credit card, according to Snopes.

据Snopes网站介绍， RFID 有一项信息没有传输，那就是信用卡上的 CVV (信用卡验证值) 安全码,。

youdao

The Card Verification Value number is the three or four digit number that is usually imprinted on the back of a credit card.

FORBES: Political Scandal Developing Surrounding Credit Card Donations?