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23pds, Chief Information Security Officer of SlowMist, tweeted that Google Authenticator iOS has launched a version 4.0 that supports cloud synchronization, but attention should be paid to the existing risks: if you use this backup method, the risk will be transferred to the mailbox, once the mailbox permission Losing it may lead to the theft of the 2FA verification code. (If) combined with the obtained mailbox permissions, it will bring huge risks. Therefore, while it is convenient, there may be risks. Encrypted users, please pay attention to the risks.
As previously reported, Google Authenticator’s iOS app version 4.0 has added support for cloud synchronization. Users can synchronize the verification codes generated by the authenticator to all Google accounts and devices, and can obtain verification codes at any time even if they lose their devices.