behind the curve
not keeping up with current thinking or trends
tap-and-go
wireless payment technology using credit and debit cards, or mobile phones
antenna
equipment used for sending and receiving radio or TV signals
ether
the air where electionic communication happens
fraud
getting money by cheating people
spending spree
doing a lot of shopping over a short period of time
wearable tech
things you can wear which combine payment and security technology
authenticate
[in general] prove something is true or genuine
