Phone number, password, connection alerts… Four tips to secure your Facebook account

The data of 533 million Facebook users around the world, including nearly 20 million French, was made public at the beginning of April. Faced with such flaws, solutions exist to make your account as secure as possible.


The case dates back to 2019, but has only grown globally in recent weeks. The data of 533 million Facebook users worldwide, including nearly 20 million French, was published at the beginning of April. Names, first names, love statuses but above all telephone numbers have thus been made available free of charge on a pirate forum after having been sold under wraps for about two years.

These personal data now in nature having been copied, the hundreds of millions of victims have no real possibility of repairing the damage. But if you have a Facebook account, this leak is a good reminder to make sure you’ve taken the right precautions. Franceinfo offers you four.

Do not leave your phone number there

The flaw exploited in 2019 would come from a feature that allowed everyone to find contacts on the social network that were already in their phone book. The Techcrunch site was echoed at the time (article in English) of this data breach. “Thanks to the measures we have taken, we are convinced that the specific problem that allowed [aux pirates] to obtain this data in 2019 no longer exists ”, Facebook said on April 6 in a statement (in English).

If you have in the past associated your phone number with your Facebook account and you don’t believe the promises of the social network, you can always reverse your decision. Note, however, that if you lose your password, Facebook will no longer be able to verify your identity by sending you a text message.

If you still want your number to disappear from the social network’s servers, head to the “Settings and privacy ” application or website (accessible from the arrow at the top right of your screen), select “Settings”, then the “Mobile” page on computer, or “Text” in the “Notifications” subcategory of the application. Then click on “delete” under your phone number.

Choose a secure password for your account

What goes without saying goes better when writing: a strong password is one of the best guarantees to avoid having your Facebook account hacked. On its website, the National Information Systems Security Agency (Anssi) gives some simple advice to apply.

Among the essential rules, remember that your Facebook password must be different from the ones you use to connect to other accounts, such as your mailbox for example. Also avoid choosing a password linked to a characteristic element that may be known to third parties (date of birth, first name of children or grandchildren, etc.). Finally, choose a long password (at least 12 characters), in which you replace certain letters with numbers and special characters, and alternating upper and lower case.

A good way to choose a secure password is to rely on a proverb or song lyrics, and apply the treatment described above. So the famous “And it goes: zumba, caféw, caféw, carnival” of the song Organized band can become “éC @ féZumb4KféKféC4rn4v4l”.

Enable two-factor authentication

This is arguably the most important tip to apply. When you log into a site, you often have to enter two pieces of information: your username (email address, or nickname, most of the time), and a password.

By enabling two-factor authentication, Facebook will ask for a third username every time someone (you, or a worst-case hacker) successfully enters your username and password. This third identifier is a random number, which will be sent to you by e-mail, SMS or even generated by an application dedicated to this type of service, such as Google Authenticator. That’s a little extra annoyance when you want to quickly log into your account on a new device, but it’s also a last line between your data and a malicious hacker, though like all technology, it doesn’t. is not foolproof.

To activate this functionality, once again go to the menu “Settings and privacy”From Facebook, then“ Privacy Shortcuts ”. Then click on “Use two-factor authentication”.

Facebook will then suggest you activate this feature by sending an SMS or using a dedicated mobile application.

Set up alerts in the event of a suspicious connection to your account

Finally, Facebook offers to send you an alert message in the event of a questionable connection attempt to your account (for example in the case of an attempt geographically very far from your recent location). To activate this option, go to “Settings” again, then click on “Security and connection”, and, in the “Security reinforcement” section, open the “Receive alerts in case of unrecognized connections” menu. You can then choose to be notified in the event of a connection “From an unknown source or browser” via a Facebook, Messenger or email notification and, if necessary, quickly change your password.


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