Facebook: Network configuration change would have caused the failure

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(Bloomberg) – Facebook Inc. blamed a global service outage that kept its social media apps offline for much of Monday on a problem with its network settings, adding that it found no evidence that the data of users have been compromised during downtime.

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“This disruption to network traffic had a cascading effect on the way our data centers communicate, crippling our services,” the company’s engineering team wrote in a blog post Monday night. .

The technical problem took Facebook’s main social network, its Instagram photo app, and its messaging services WhatsApp and Messenger offline for hours, marking one of the longest and most widespread failures in recent memory.

Facebook’s outage had a seismic impact, paralyzing a set of services that more than 2.75 billion people depend on daily to communicate, do business and consume news. The flaw dominated the news and caused people around the world to search for other apps and services in an effort to stay connected and informed.

The company’s chief executive, Mark Zuckerberg, apologized on his Facebook page after the network was re-established. “Sorry about the interruption today, I know how much you rely on our services to stay connected with the people you care about,” he wrote.

Facebook’s internal tools and communications systems were affected by the outage, adding to the challenge of engineers working to identify and resolve the issue. Its internal work product, Workplace, was also affected. Fixing the underlying problem involved visiting a physical server installation and manually resetting some servers, a spokesperson said.

“To all the small and large businesses, families and individuals who depend on us, I am sorry,” Mike Schroepfer, chief technology officer, tweeted Monday afternoon. His apology was reiterated by the Facebook engineering blog.

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The failure of Facebook became an advantage for other social networks. The Twitter Inc. network stayed online and its CEO Jack Dorsey tweeted his endorsement of the private messaging app Signal as an alternative to WhatsApp. Signal registered millions of new users on the day, while Telegram, whose functionality closely resembles WhatsApp, climbed 55 spots to top the iPhone download chart in the US, according to Sensor Tower.

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