Google has fixed a problem that could allow an unauthorized user to access Google Wallet cards. The problem was discovered in February. The issue has been fixed and the ability to add new cards to the system is now back in service. The fix does not address the other issue that could have been fixed by rooting a Google Wallet card in a rooted phone. The company is working on a permanent fix to the problem, but says rooting a phone is not necessary to make the system secure for the new cards.”]
Source: https://www.csoonline.com/article/2130952/google-wallet-open-for-business-again.html