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By simple guessing your phone number, which is easily done, hackers can get

access to all your Facebook data

Simple hack could give criminal access to all your Facebook data- just by guessing

your mobile number. The names, location, images and more data of users can be

gathered by just guessing a phone number- a relatively straight for- ward process.

That data could then be stolen and sold on, for use in crime and identity theft.

The hack exploits a tool that’s intended to let anyone fine a Facebook user by

putting their phone number into a search box. But Raze Moaiandin, technical

director at Salt agency, has founds that using a computer to automatically put in

number can let people scrape a huge amount of data on Facebook user easily.

By gathering up an entire country’s possible combinations and putting them

through the search box, hackers can pick up all Facebook user IDs of people using

those numbers. That can then be put into Facebook’s Graph QL, the tool Facebook

user to organize its data, to pick up all the information that the site has on those


All of that information is publicly available. But Moaiandin points out that

collection all of that data on a large scale means that scale means that it can be

easily sold on and potentially combined with other stolen data to find out much

more about the people involved.

The “Who can find me?” setting that decides whether people should be able to

locate people using a phone number is turned to “Everyone/public”, Thought it

can be switched off to avoid being liable to the hack.

A spokesperson for Facebook said, “The privacy of people who use Facebook is

important to us. We Have strict rules that govern how developers may use our

APIs to build their products, and in this instance, all the information being

returned is already designated to be public.

“Everyone who uses Facebook has control of the information they share, including

information on their profile and who can look them up by phone number. Our

privacy basics tool has a series of helpful guides that explain how people can

quickly and easily decide what information they share and with whom they want

to share it.” But Moaiandia says, Facebook should go further by “limiting the

requests from a single, user detecting patterns, before moving on to pre-

encryption all if its data”.

Moaiandia said he had found the loop- hole by mistake: “I wasn’t even searching

for flaws in Facebook’s security when I came across It”, he writes in his blog. He

founds the flaws a few months ago and decided to release it to the public when

trying to tell Facebook failed as “an attempt to catch Facebook’s attention to get

this issue Fixed”.