After we learned that Google Wallet was cracked rather easily on rooted phones, and then shortly after on non-rooted devices, Google quickly addressed the problem by temporarily disabling provisioning of prepaid cards. The flaw would allow a user to access an existing pre-paid balance after loading up a new prepaid card on a device that did not belong to them. Today Google announced a fix was issued yesterday afternoon that “prevents an existing prepaid card from being re-provisioned to another user”:
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While we’re not aware of any abuse of prepaid cards or the Wallet PIN resulting from these recent reports, we took this step as a precaution to ensure the security of our Wallet customers. If you are unable to access your previous prepaid card balance for any reason, please contact our toll-free support for assistance.