What is MasterCard® SecureCode™?
MasterCard® SecureCode™ is an authentication service that protects your card against unauthorised use when you shop online at participating retailers. The service protects Mastercard and Maestro cards with a PIN password, giving cardholders reassurance that only they can use their MasterCard or Maestro card online.
Once your card is activated, your card number will be recognized whenever it's used at participating online stores. A MasterCard SecureCode window will automatically appear and your MasterCard or Maestro card issuer will ask for your password. You'll enter your password to verify your identity and complete your purchase. At stores that aren't participating in MasterCard SecureCode, your card will continue to work as usual.