Credit card security refers to the measures taken to protect cardholders from fraud and unauthorized transactions. This includes features like chip technology, which makes it harder for criminals to clone cards, and CVV codes, which add an extra layer of verification during online purchases. Additionally, many banks and credit card companies offer fraud detection services that monitor transactions for suspicious activity. Cardholders are also encouraged to use secure websites, avoid sharing personal information, and regularly check their statements to spot any unauthorized charges quickly.