New Gmail Security Feature: Identity Verification
Google is rolling out a new security feature in the coming weeks to keep your account safe from hijackers, even those that may have obtained both your username and password.
If Google detects any type of suspicious login, whether it's too many incorrect attempts at your password or from a location that may have never been associated with your account, you will be prompted with a warning message. The message will require users to verify their identity by entering the phone number linked to their account.
Users that have not already linked a phone number to their account will be prompted to do so in the coming weeks to ensure the security features can be administered. Once verification is made, the prompt will disappear and your sessions will continue as normal.
Please note that this new feature will only be applicable to users that are logging on through the web who have not enabled two-factor or two-step verification (a security feature that requires users to enter a dynamically generated code that is sent via sms to their mobile phone each time they login). Schools and businesses using any form of SSO (single sign on) will also not be affected by the new security feature.