attack
background
businessman
buying
cashier
cellphone
checkout
chip
consultant
consumer
contactless payment
credit card
data
debit card
devices
digital wallet
education
electronic commerce
finger
hand
icon
information
link
mobile payment
mobile phone
modern
money
near field communication
new
nfc
people
person
pin
presentation
proximity card
purchasing
rfid
screen
security
selling
services
shops
smartphone
smartwatch
teacher
technology
terminal
thieves
transactions
wireless