Facebook Uncovers 'Security Issue' Affecting Nearly 50 Million Accounts
Facebook this morning announced that its engineering team on Tuesday discovered that hackers have exploited a vulnerability in its code, allowing hackers to steal Facebook access tokens for almost 50 million accounts.
According to Facebook, hackers took advantage of security flaws in its "View As" code, which is a feature designed to let people see what their profile looks like to someone else. The Facebook access tokens that were stolen are digital keys that allow people to stay logged in to Facebook.
This attack exploited the complex interaction of multiple issues in our code. It stemmed from a change we made to our video uploading feature in July 2017, which impacted "View As." The attackers not only needed to find this vulnerability and use it to get an access token, they then had to pivot from that account to others to steal more tokens.
It is not clear whether the accounts affected were misused or have had information accessed at this time, and Facebook does not know who executed the attacks.
Facebook says that the vulnerability has been patched at this time, and authorities have been informed. Facebook has reset the access tokens of the nearly 50 million accounts that were affected along with another 40 million accounts that have been subject to a "View As" lookup in the last year.
Customers who have been logged out of their apps will receive a message about what happened once they log back in.
While a security review is conducted, Facebook is turning off the "View As" feature that was used for the hack.
Facebook says that it is "sorry this happened" and that people's privacy and security "is incredibly important." No one needs to change their passwords, according to Facebook, but those concerned can visit the "Security and Login" section in settings to log out of all devices at once.
Today's Facebook hack comes just a day after Facebook was found to be using phone numbers that customers provided for 2-factor authentication for ad targeting purposes and shadow contact building.
Popular Stories
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie.
"Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
In the iOS 26.4 update that's coming this spring, Apple will introduce a new version of Siri that's going to overhaul how we interact with the personal assistant and what it's able to do.
The iOS 26.4 version of Siri won't work like ChatGPT or Claude, but it will rely on large language models (LLMs) and has been updated from the ground up.
Upgraded Architecture
The next-generation...
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld.
The report, citing industry sources, is available in English on Macworld.
Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps.
The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future.
To set up the...
New MacBook Pro models with the M5 Pro and M5 Max chips could arrive as soon as Monday, March 2, according to Bloomberg's Mark Gurman.
In today's "Power On" newsletter, Gurman said that the release of new MacBook Pro models is tied to the release of macOS Tahoe 26.3. The launch is said to be slated for as early as the week of March 2. He added that the M4 Pro and M4 Max models on sale today...
