What To Do If Someone Else is Using Your Facebook Account?

If such a situation arrives then here are some immediate-basic steps you should take:

• Change the password of your account.
• Go to Account >> Account Settings >> Security.
• Click on “end activity”, in case you see other suspicious active accounts.
• Check “Send me an email” and “Send me a text message”, and click “Save”.

Now you will get an email and SMS alert every single time anyone login to your Facebook account.