Kreditkartensicherheit ID
To make online purchasing more secure for you the credit card holder, bookassist requires that you enter the credit card security ID associated with your current card..

This is NOT required for Laser Card holders

The security ID is a number associated with your card only, not with your credit card number, and is an added safeguard to ensure that the card is present when the transaction is being processed. The security ID is located on the back of the card above the signature (3 digits - VISA/Mastercard) or on the front above the credit card number (4 digits - AMEX) as shown below.