Changes underway at Facebook.

50 million Facebook accounts affected by security breach

Social media giant says it has taken steps to fix the security problem and alerted law enforcement

Facebook says it recently discovered a security breach affecting nearly 50 million user accounts.

The hack is the latest setback for Facebook during a year of tumult for the global social media service.

In a blog post , the company says hackers exploited a bug that affected its “View As” feature, which lets people see what their profiles look like to someone else. That would let attackers steal the “access tokens” Facebook uses to keep people logged in. Possession of those tokens would allow attackers to “seize control” of user accounts, Facebook said.

Facebook says it has taken steps to fix the security problem and alerted law enforcement.

To deal with the issue, Facebook reset some logins, so 90 million people have been logged out and will have to log in again. That includes anyone who has been subject to a “View As” lookup in the past year.

Facebook says it doesn’t know who is behind the attacks or where they’re based. In a call with reporters on Friday, CEO Mark Zuckerberg said that the company doesn’t know yet if any of the accounts that were hacked were misused.

Jake Williams, a security expert at Rendition Infosec, said the stolen access tokens would have likely allowed attackers to view private posts and probably post status updates or shared posts as the compromised user, but wouldn’t affect passwords.

“The bigger concern (and something we don’t know yet) is whether third party applications were impacted,” Williams said in a text exchange. “Facebook offers a login service for third parties to allow users to log into their apps using Facebook. In other words, Facebook is providing the identity management for countless other sites and services. These access tokens that were stolen show when a user is logged into Facebook and that may be enough to access a user’s account on a third party site.

News broke early this year that data analytics firm that once worked for the Trump campaign, Cambridge Analytica, had gained access to personal data from millions of user profiles. Then a congressional investigation found that agents from Russia and other countries have been posting fake political ads since at least 2016. Facebook CEO Mark Zuckerberg appeared at a Congressional hearing over Facebook’s privacy policies in April.

Facebook has more than 2 billion users worldwide. The company said people do not need to change their Facebook passwords, but anyone having trouble logging on should visit the site’s help centre . Those who want to log out can visit the “Security and Login” section of their settings, which lists the places that people are logged into Facebook. It has a one-click option of logging out of all locations.

Ed Mierzwinski, the senior director of consumer advocacy group U.S. PIRG, said the breach was “very troubling.”

“It’s yet another warning that Congress must not enact any national data security or data breach legislation that weakens current state privacy laws, preempts the rights of states to pass new laws that protect their consumers better, or denies their attorneys general rights to investigate violations of or enforce those laws,” he said in a statement.

Wedbush analyst Michael Pachter said “the most important point is that we found out from them,” meaning Facebook, as opposed to a third party.

“As a user, I want Facebook to proactively protect my data and let me know when it’s compromised,” he said. “Shareholders should ultimately approve of Facebook’s handling of the issue.”

Related: Facebook uncovers new global misinformation operations

Related: B.C. firm linked to Facebook data scandal defends its political work

The Associated Press

Like us on Facebook and follow us on Twitter.

Just Posted

Code of conduct needed after Curling Classic debacle, says Red Deer Curling Manager

Wade Thurber says code of conduct will help organizers in the future if another incident occurs

Notre Dame students wear blue to support National Child Day

Central Alberta Child Advocacy Centre chosen as recipient of monies raised for Grad Service Project

Red Deer’s next winter celebration is just around the corner

Snow and Ice Celebration runs Dec. 1st at Red Deer Civic Yards

Red Deer husband and father of four passes away overseas

A GoFundMe page has been set up to support the family

The Gaetz Avenue bridge is officially open to traffic

After over two years Red Deerians will have an easier commute

VIDEO: Shoppers like self-checkout lanes at the grocery store, survey suggests

Grocery Experience National Survey Report suggests most grocery shoppers spend 32 minutes per visit

Former NHL player and coach Dan Maloney dies at 68

Maloney coached the Toronto Maple Leafs and Winnipeg Jets

Ex-MSU president charged with lying to police about Nassar

Lou Anna Simon was charged Tuesday with lying to police during an investigation

Police looking into two more incidents at private Toronto all-boys’ school

Police and the school have said two of the prior incidents involved an alleged sexual assault

25% of Canadians still won’t say they use pot, survey says

Statistics Canada poll says Canadians on average were 18.9 years old when they first tried pot.

The latest advent calendar trend: Holiday cannabis

A Canadian company is giving people from coast to coast a new way to celebrate the Christmas countdown.

Ponoka’s Caleb Shimwell arrested after pursuit

Police allege that Shimwell rammed a police cruiser

731,000 Canadians going into debt to buy prescription drugs: UBC

Millennials and those without private coverage were more likely to borrow money

Most Read