For a contactless payment:
Simply put your credit card near the payment terminal, facing the symbol "contactless". The operation is saved, a ticket is given to you. it's paid!
And about security?
Contactless Mastercard transactions are secure
You benefit from the same protection mechanisms in the event of loss, theft or fraudulent transactions as with your traditional bank card.
No accidental payments
For a Mastercard Contactless payment transaction to be completed, you must present your card within 5 cm of the payment reader. The card must face the contactless payment pictogram for the transaction to take place.
No problem with double billing or multiple debit
Even if you approach your card several times at the time of payment, your purchase will only be charged once. The presentation of the card to the reader even several times generates only one payment transaction.