The Mastercard Prepaid Digital card is completely secure. Thanks to the prepaid functionality, the card can only be charged in the amount of the currently available balance. Once you activate your card on your smartphone or your smartwatch, you will be assigned a unique device identifier known as a token. Your token is encrypted and stored on the phone or watch, meaning that your confidential card information is not saved on the device. Additional security settings, such as freezing or unfreezing your card, can be managed in the «My Card» app.