![]() There is no way to revoke trusted status from a given authenticator app without revoking all other authenticator apps initialized with that seed.Generating a new TOTP seed instantly invalidates all previously initialized authenticator apps.A single TOTP seed may exist at any given time, meaning that multiple authenticator apps can only be initialized with the same QR code.There are several essential things to know about Google’s implementation of TOTP: Yes, you can use Microsoft Authenticator on Windows 10 Mobile to generate verification codes for Google Account, and vice versa: using Google Authenticator on Android successfully generates codes to Microsoft Account. ![]() For example, Microsoft offers its own TOTP-based Authenticator app for Android, iOS and Windows 10 (both desktop and mobile). Google has its own Authenticator app available for Android and iOS, but one can use pretty much any authenticator app on any major platform. Once scanned, the QR code conveys initialization seed to the Authenticator app of the choice. For convenience, the secret can be conveyed as a QR code. In TOTP, trusted devices are initialized with a secret. Even Apple Two-Factor Authentication generates TOTP passwords when the user requests a verification code from device settings. The time-based one-time password algorithm is an open solution supported by pretty much the entire industry. These are then displayed in a ready to print format (business card size), allowing users to carry this essential piece of security in their wallet. Google offers the ability to generate a bunch of 10 backup codes. The Low-Tech Solution: Printable Backup Codes So let us have a look at what Google has to offer. One is no longer locked out of their Google Account even when traveling, and even if attempting to log in from a new device. Once two-factor authentication is activated, things change. (Interestingly, Microsoft exhibits similar behavior, yet the company allows using two-factor authentication in such cases even if two-factor authentication is not enabled for that account. From first-hand experience, one is then forced to change their Google Account password. Without two-factor authentication, Google may easily decline sign-in requests it deems suspicious. Interestingly, even receiving and entering such a code and answering all the additional security questions Google may ask about one’s account does not actually confirm anything. This can (or cannot) be done in various ways such as receiving a verification code to an existing backup email address that was previously configured in that account. If Google detects an unusual sign-in attempt (such as one originating from a new device located in a different country or continent), it may prompt the user to confirm their account. Google’s support of two-factor authentication is extensive, ranging from pre-printed backup keys to interactive, push-based notifications delivered to devices with up-to-date versions of Google Play Services via Google Cloud Messaging.īefore we start discussing Google’s two-factor authentication, let’s first look how Google protects user accounts if two-factor authentication is not enabled.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |