Just to second what has already been said. I have been using tap and pay for years, My son is a respected consultant Cyber crisis management and recovery specialist.
When I first considered using a google wallet he gave me a big thumbs up telling me that virtually all the scaremongering stories were just silly. I get a detailed notification/alert within, at the most, a couple of minutes every time my card is used so, even if the worst happened, I would know and be able to take action immediately if a payment was made without my knowledge.
Using a digital wallet with biometric authentication is a no-brainer as far as I am concerned

just make sure your phone battery isn't flat. <<<< Jo looking extremely embarrassed exits rapidly stage right >>>>