How to check whether a Facebook account is hacked
Actually, all the actions from your account are logged in your Activity Log, where you can check whether any actions were made that you don’t recognize as your own.
To go there click on the little arrow representing your account settings menu on the top right corner and choose “Actually all the actions from your account are logged in your Activity Log ” there:
That’s how it looks from inside:
If everything there looks fine, you can also check your “Security and login” details. There you can see “Where you’re logged in” block showing which devices you’re logged in from right now. It looks like this:
So, if there are any devices you don’t recognize log out from them right away using the little dots on the right of the device line and clicking the “Not you?” option:
Right after that — start the process of password changing immediately!