app-ink.net/how-to-reset-winsock-in-windows-10
The first thing you should do if you think your Facebook account has been compromised is to change your password. If you use Facebook for logging into apps such as Spotify or Instagram, change those logins too. This will prevent the hacker from accessing these services from your hacked Facebook profile.
Hackers can access a wealth of personal data in hacked Facebook accounts. Hackers could utilize this information for fraudulent motives, such as getting credit card numbers, and sending people fake credit card offers or frauds involving phishing. They may also use the compromised account to send threatening messages to family members, or put up a post on your Facebook timeline with your name (as if you did it yourself).
One of the most frequent methods hackers gain access to an account is when they exploit a flaw in Facebook’s app code. A bug in the iOS Facebook application allows hackers to take over cookies and steal the “access token” of an iPhone user. These tokens which are digital keys, give them complete control over the user’s Facebook Account, and any other websites they access with their Facebook credentials.
A hacker can also gain access to a user’s account through brute force attacks. This technique involves guessing a password, often the most popular ones like 123456789, or 1234567890. Hackers may also gain access to accounts through scanning compromised credentials. There are a variety of free tools that can be used to search for stolen data, including the popular website called HaveIBeenPwned.