Google recently launched a tool that allows you to manage all these devices have access to your Gmail account. It can be an Android phone, an iOS device, a computer that you used to log in to your Google account synchronization of contacts, calendar events, to-do list, activate Google Now, etc. When you click on each particular device, you will find the location nearest machine is used where and when. If you find a new devices that you don’t know, you can use the “Remove” button to remove the permission to access Gmail account. 

How To Remove Permission To Access Gmail Of Any Devices?

Step 1: Login to your Gmail account

Step 2: Access the security page by this link: http://www.google.com/settings/security

Step 3: In the “Recent Activity” area, click on “View activity“

View activities of your Gmail account

The current device that is using your Gmail account

The activities of your current account

Remove button

Tip: you can use direct link http://security.google.com/settings/security/activity

All your old devices that you no longer use will still have the permission to access your account even though you’ve done reset the devices or even wipe the data. To remove completely, you should use the “Remove” button to ensure the safety of your Gmail account. Recommended reading: How to know your Gmail account is HACKED or NOT?

Old device still has access permission

Remove old device

Read more: 4 ways to secure your Google account or How to Change Gmail Account Password.

Hope this guide is helpful for you! If you get any problem, let me know by leave comment below!