transactions put you and your information more at risk of fraud. The hackers have easily gained access to your account. Be sure to look for a Secure tag to the left of the web address of any site youre making an online purchase through. An Amex CID is also four digits instead of three. The expiration date and the CVV. When you use your card in person. Expiration date and especially the CVV. Your card carrier can verify your cards unique CVV in the event verification is needed. Finding the right financial advisor that fits your needs doesnt have to be hard. Plus, a credit cards CVV acts as another line of security against fraud. Whether you swipe or insert the chip. This includes not clicking on suspicious links and not entering your credit cards account number. Hackers can also include that requirement on their fraudulent page. Because online merchants so often ask you to enter your CVV.