A wallet you can lock — and remotely disable We take security very seriously and have always had a dedicated Google Wallet PIN to prevent others from making payments with your Google Wallet. And as always, we encourage Google Wallet customers to set up the phone’s screen lock — as an extra layer of protection.

Today, we’re adding a Google Wallet security feature that makes it possible for you to remotely disable your mobile wallet on a lost phone. It’s easy. If you lose your phone, just visit the ‘Devices’ section in the online wallet and select the phone with the mobile wallet you wish to disable. When you successfully disable your wallet on a device, Google Wallet will not authorize any transactions attempted with that device*. If the Google Wallet online service can establish a connection to your device, it will remotely reset your mobile wallet, clearing it of card and transaction data. There is no way you can do that with your leather wallet.

What could possibly go wrong?

Use any credit or debit card with Google Wallet | Official Android Blog.