What to do immediately if you are 1 of 50 affected by FB hack

You are disconnected from your Facebook account? It is very likely that you are among the nearly 50 million users whose data was hacked yesterday.

According to Facebook, attackers could exploit a security vulnerability in a feature called "View As", which allows you to see what your profile page looks like to other people.

Functionality with a security vulnerability now disabled

The security breach allowed them to steal access tokens – or digital keys that kept you connected to the social networking site. In addition, they may have access to your accounts on other apps and websites if you use your Facebook credentials to sign up for other online services. For example, if you login to Instagram using, well, Facebook Login, or the email address or phone number and password associated with your Facebook account.

SEE ALSO: How to temporarily disable a Facebook friend, page or group

The company said the vulnerability had been corrected. It already resets all access tokens for the affected users. If you're one of those who have logged out of your account, Facebook says the only thing you need to do is log back in to the site. But you can never be too careful. Here are some of the things you can do right now to protect your data from hackers:

• Check devices that use your Facebook account.
  • If you are in the app, you can see them by clicking on the three horizontal lines in the lower right corner and then tapping Settings and Privacy> Settings> Security and Connection. Here you will find the part "Where you are connected". Browse each connection and delete or report suspicious information. The same is true when you access the Facebook website, but with slight variations. Click the down arrow at the top right and choose Settings> Security & Connection.
• Change your password
  • It is advisable to do it frequently. Yes, it's a little tedious, but you do not think it's more stressful if your account is hacked again?
• Enable two-factor authentication.
  • This was the topic of another issue recently, but we still think that the use of this problem is less serious. Two-factor authentication is found under Security and connection. When activated, you are prompted to log in with a code each time you access your Facebook account from a new device. You can also approve a connection with a security key if you have one. If you're a frequent flyer, it's probably best to define "recovery codes".
• Receive alerts about unrecognized connections.
  • You can choose to receive a notification on Facebook or on Messenger, or by email or SMS.
• Choose trusted contacts when you're stuck on Facebook.
  • This is always under Security and Connection. In fact, everything we have listed up here involves going in this context. For this step, select three to five Facebook friends who can help you safely if you are having trouble accessing your account. They can send code and a URL from the social network to help you reconnect.