Instructions for Recovering a Hacked Gmail Account
To protect against phishing scams, Gmail users should never click on a link to sign into their accounts, they should instead go directly to https://accounts.google.com/signin/recovery or use the Gmail mobile app.
Also, Gmail users may add two-step verification for extra security. Two-step verification is another layer of security that uses your password plus a code to verify your identity when they sign in to their accounts on a new, unrecognised device for the first time. Gmail will send their cell phone a code by text or phone call that only they will have access to.
Click here to learn more about Gmail Two-step verification or authentication and how to add to your account.