How to know if you were affected by the leak of 553 million Facebook profiles

How to know if you were affected by the leak of 553 million Facebook profiles
How to know if you were affected by the leak of 553 million Facebook profiles
Hacked data from more than 553 million Facebook users leaked onto the internet this past weekend. The hack includes names, dates of birth, relationship status, the city where they live, workplace and, in some cases, even email addresses.

The most sensitive data included in the leak is undoubtedly the phone numbers, which are often used for two-factor authentication. And now there is a way to easily check if the phone is on the list, at least for users who live in the United States.

The website The News Every Day has a simple tool where you can enter your phone number and see if it has been affected. Gizmodo US tested the tool with some data from the Facebook hack and it worked. For example, we tested Mark Zuckerberg’s phone number, which is included in the leak. We assume that Zuck has already changed his cell phone number to avoid further headaches.

All you need to do to verify is to enter your phone number without hyphens or periods. You must also include the international country code at the beginning. That is, if you are used to seeing your cell phone as 555-212-0000, you must delete the hyphens and add the digit “one” on the front.

Using the same fake number above, the number you enter should look like this: 15552120000. If you include a variation other than the sequence of numbers, the tool will falsely say that your number is not included in the leak.

For users outside the U.S., it is still possible to check if you were hit by the hack using your Facebook login email. To do this, go to, enter your email address in the search bar and, if it is included in the list, you will see a message alerting you to change your password immediately.

Facebook did not say much about the leak, only that the data is the same as another hack released by the press in 2019. At that time, the information was offered in forums for a specific price. However, what makes this weekend’s leak different is that the data has now been shared for free – it’s 16 GB that can be found with a simple Google search.

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