1. To see if your Facebook page is secure:
Log into your Facebook account and click the gear icon in the far right corner. Once the drop down menu appears, go to Settings.
Click Security and scroll down and click Edit next to the Active Sessions category
This section records every time someone logs into an account from a desktop computer or app. Once you see any suspicious activity, click end activity.
2. Change your password
If the hacker did not change your password then it is time for you to update your password. Go to>Home>Account Settings>General and click>Password to confirm your current password and then enter a new password.
3. Reset your password
If your password was changed, try to regain access. There is a >Forgot your password? link underneath the Facebook login.
It will let you retrieve your password in several ways. You can either enter the email address you registered to Facebook with or any other secondary email address you added, as well as your phone number and username.
If the person that hacked into your account did not change your profile information, enter your name and that of a friend. This will give you an idea of which information is currently added to your account.
If you don’t have access to any of the email accounts or to the phone number associated with your account, click the >No longer have access to these? URL. This will take you to a page where you can enter a new email address, which Facebook will then use to assist you in recovering your account.
4. Report compromised account
If your account wasn’t simply hacked, but is sending out ads and spam to your friends, you must report it as compromised.
5. Do damage control
After doing everything you can to regain control of your hacked Facebook account, inform your friends about what is going on, just in case the hacker has abused or is currently abusing your account. If you can’t access your account immediately, contact your Facebook friends through other social networks, by email, or have a mutual friend inform them via Facebook.
6. Remove suspicious applications
Oftentimes, it’s not an evil person that randomly hacked into your account. More likely than not, you granted access to a malicious application, which subsequently hijacked your account. To remove suspicious applications, go to >Home>Account Settings>Apps and go through the list. Click the >X next to any application you wish to remove or click >Edit to change what the app can do.