Whether shopping online or over the phone, you must provide your credit card information to process the transaction. Apart from entering a card number and an expiration date, you probably will have to ...

Do you receive login security codes for your online accounts via text message? These are the six- or seven-digit numbers sent via SMS that you need to enter along with your password when trying to ...

If you're attempting to add your debit card as a payment method in the Apple Inc. iTunes Store, but you repeatedly get an error message that insists you've entered ...

The best way to protect online accounts is with a security key that ensures you’re the one signing in. However, enterprise users still have legacy systems like Internet Explorer or remote desktops ...

Credit card security codes are three-digit codes on the back of your card (four-digits on the front if you have an American Express card) used to verify that have the physical card. You typically ...

When you make credit card purchases online or over the phone, you'll often need the card's security code to complete the transaction. The security code helps to protect you from credit card fraud and ...

Elon Musk was right: Text messages are not the most secure way to protect your account. By Brian X. Chen Brian X. Chen is the lead consumer technology writer for The New York Times. Twitter recently ...