The first thing you must do if you think your Facebook account has been compromised is to change your password. If you use Facebook as a login for apps like Spotify or Instagram then change the logins. This will block the hacker from accessing these services from your hacked Facebook profile.

A hacked Facebook account can provide hackers with access to a wealth of personal information. Hackers could make use of the information for malicious purposes such as spamming people or sending fake credit card offers. Hackers can also use hacked accounts to send spammy messages or to post on your timeline (as the case were you who made the mistake).

One of the most common methods hackers gain access to an account is when they exploit an error in Facebook’s application code. A flaw in the iOS Facebook application allows hackers to take over cookies, and then steal the “access token” of an iPhone user. These tokens which are digital keys, grant them complete control over the user’s Facebook Account, as well as any other website they visit using their Facebook credentials.

Hackers can also gain access to accounts using brute-force attacks. This method involves figuring out passwords, usually the most popular ones such as 1234567890 or 123456789. Hackers may gain access to accounts by scanning compromised credentials. There are several free tools that can be used for scanning for stolen data, including a popular website called HasbeenPwned.