Facebook has been leaked more than once. Recently, foreign media reported that Facebook, a database for storing user phone data, was exposed on the network because it was not encrypted. It is said that up to 419 million user phone data were leaked, all of which are allowed to be accessed by anyone. However, a Facebook spokesman later said that the database had long been deleted, adding that there was no evidence that Facebook had been invaded.
Facbook leaked 419 million user phone data
A Facebook spokesman said the database had already been taken off the shelves
Experts call on users to beware of "SIM card exchange attack"
It is reported that sanyam Jain of GDI foundation, a researcher of Zian security, first discovered the leakage of telephone data and investigated where the data leaked with techcrunch. They found that 419 million data spread all over the world, of which 133 million were in the United States alone, 18 million in the United Kingdom and 50 million in Vietnam. Techcrunch also found that these leaked data The data includes the user's Facebook ID and telephone number, and some also list the user's name, gender, nationality, etc. they believe that these data are indeed true through the password reset function test of Facebook.
In response to the incident, Facebook spokesman Jay nancarrow pointed out that they closed the database link as early as April 2018, earlier than Facebook removed the phone number search function. Therefore, it should be that someone fished a lot of user data before they closed, not recently. However, no one knows the "murderer" And the purpose behind it. At present, this database has been taken off the shelf.
The report mentions that this massive data leak has the opportunity to expose users to a number of crazy sales phone harassment. At the same time, criminals have the opportunity to use the phone number to reset the network account password through the "SIM switching attacks", and even easily through the two-step SMS verification of credit card and account login. Earlier, twitter CEO Jack Dorsey was also attacked "SIM card exchange attack" caused his twitter account to be controlled by hackers.