Google's Gmail is the most used email service worldwide. Gmail is used by more than a billion people around the world, and that's probably why hackers always eye on this email service. If you've also noticed suspicious activity in your Gmail account, someone may have hacked your account. also read: Tata Sky introduced a new plan with 6 months of validity Go to the Account Recovery page. If you don't remember the password, answer different security questions. Use your recovery email or phone number. Now Gmail will send a recovery code to that phone number or email to ensure your account owner is entitled. You can also provide what you created when you set up an account. Once you've received the recovery code, enter it in Gmail, and then Google asks you to change the password and after you've signed in, Gmail will ask you for a security check. Make sure that you check security and then change your security information. Due to a hacking activity on your Gmail account, if someone is using your Google account without your knowledge, your other Google accounts are unprotected and unauthorized payment activity There may be big threats like unfamiliar Google Play activity, unknown YouTube activity, unfamiliar app.02:17 Changed Your GMAIL, Learn new features Take care of the security checkup guidelines to secure your Google account. It's Google's service that helps users check connected apps, devices, account messages, etc. to see if their account is safe. Password with Google account is used. also read: You can soon track your stolen phone, govt set to roll out IMEI database