There are two major holes in Google Wallet's security. One that gives a person access to your pin by using a rooted app, and the other (which is even easier to do) that gives a person the ability to change your pin.
http://thesmartphonechamp.com/security-flaw-found-in-google-wallet/
This one is the largest hole in Google Wallet
http://thesmartphonechamp.com/secon...le-wallet-rooted-or-not-no-one-is-safe-video/
http://thesmartphonechamp.com/security-flaw-found-in-google-wallet/
This one is the largest hole in Google Wallet
http://thesmartphonechamp.com/secon...le-wallet-rooted-or-not-no-one-is-safe-video/