Hacking Facebook Accounts with just a phone number through the SS7 protocol

Hacking Facebook Accounts with just a phone number through the SS7 protocol

Hacking Facebook Accounts with just a phone number through the SS7 protocol
Hacking Facebook Accounts with just a phone number is possible, experts from Positive Technologies demonstrated it exploiting flaws in the SS7 protocol.



Hacking Facebook accounts by knowing phone numbers itis possible, a group of researchers fromPositive Technologies demonstrated it.“Researchers have proven just that by taking control of a Facebook account with onlya phone number and some hacking skills to exploit the SS7 network, a core piece of telecoms infrastructure shown to be vulnerable repeatedly over the last half decade.” reported a blog post published on Forbes.

The security issue in the SS7 signalling system could be exploited by criminals, terrorists and intelligence agencies to spy on communications. The SS7 protocol allows cell phone carriers to collect location data related to the user’s device from cell phone towers and share it with other carriers, this means that exploiting the SS7 a carrier is able to discover the position of its customer everywhere he is.

The team of researchers from Positive Technologies is the same that recently demonstrated how tohack WhatsApp and Telegram accounts by leveraging on the SS7 protocol.

The attack method devised by the experts from Positive Technologies works against any service that relies on SMS to verify the user accounts, including Gmail and Twitter.

Hacking Facebook Accounts with just a phone number through the SS7 protocol

The Facebook hack takes the exploits a step further, only requiring a phone number. The attacker clicks on the “Forgot account?” link on the Facebook.com homepage. When asked for an email address or phone number linked to the target account, the hacker provides the legitimate number. By diverting the text message containing a one-time passcode to their own PC or phone, they can login to the account, as shown in the video below.

What does SS7 normally do?

SS7 is a set of protocols allowing phone networks to exchange the information needed for passing calls and text messages between each other and to ensure correct billing. It also allows users on one network to roam on another, such as when travelling in a foreign country.

What can access to SS7 enable hackers to do?

Once they have access to the SS7 system, a hacker can essentially have access to the same amount of information and snooping capabilities as security services.

They can transparently forward calls, giving them the ability to record or listen in to them. They can also read SMS messages sent between phones, and track the location of a phone using the same system that the phone networks use to help keep a constant service available and deliver phone calls, texts and data.

Who is affected by the vulnerability?

Should a hacker gain entry to the SS7 system on any number of networks, or if they are used by a law enforcement agency as part of its surveillance, anyone with a mobile phone could be vulnerable.




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