TORONTO – Facebook, Instagram and WhatsApp are back online on Monday after experiencing an all-day-long outage across the world.

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Service resumed for some users at around 6 p.m. EDT. The outage left people around the world unable to communicate on the platform for more than six hours

Facebook released update reported late Monday that configuration changes on the Backbone routers that coordinate network traffic between the company’s data centers were the cause of the outage. The changes disrupted communication between data centers, leading to a halt to services.

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The company said there is “no evidence that user data was compromised as a result of the outage” and it is still working to understand more about its cause.

according to website down detector, Users began reporting outage issues at around 11:20 p.m. EDT.

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Several users received an “IP address could not be found” message when trying to load Facebook, while Instagram and WhatsApp users could not refresh their feeds or send any new messages to those apps. Instagram and WhatsApp are owned by Facebook.

“To the vast community of people and businesses around the world that depend on us: We are sorry,” Facebook said on Twitter. “We are working hard to restore access to our apps and services and are happy to report that they are now back online. Thank you for working with us.”

According to the company, the outage also affected many of Facebook’s internal tools and systems, hampering recovery efforts.

Cyber ​​security expert Ritesh Kotak told Granthshala news channel on Monday, “We have seen things like this before. But they are very localised, they are in particular areas or within particular platforms.” “I don’t remember a time when there was a global outage of all three platforms where everything was completely shut down.”

Kotak said the problem appears to be that Facebook’s Domain Name System (DNS) records have either been removed or replaced. The Internet’s DNS is what translates a web address like “facebook.com” and directs users to the correct IP address. If the Company’s DNS records are deleted or changed, any associated app and web addresses will not be able to trace the Platform.

“DNS is a really important service,” technical analyst Carmi Levy told Granthshala news channel on Monday. “If a company such as Facebook, with which many services are associated, Instagram, WhatsApp, Facebook Messenger, if it does not properly manage its DNS addressing … to access the Website or through an app or any other service, They’re not going to get anything.”

Kotak said the problem could be due to human error and not dishonesty.

Adding insult to injury, Facebook shares tumbled on Monday. On top of the outage, the company is in the midst of a public image crisis.

Former Facebook product manager, whistleblower Francis Haugen provided internal documents to The Wall Street Journal that he says highlight Facebook’s awareness of the harm caused by its products and decisions. Haugen went public on Sunday’s episode of “60 Minutes” and is scheduled to testify before a US Senate subcommittee on Tuesday.

Haugen also disclosed himself to be the anonymous person who filed a complaint with federal law enforcement claiming that Facebook’s own research shows how it fuels hate and misinformation, increased polarization and Instagram, In particular, it can harm the mental health of teenage girls.

“Today’s outage, even though it has nothing to do with this testimony from whistleblower, Frances Haugen, could not have come at a worse time,” Levy said. “Investors, of course, are looking at this and going, ‘We’re out of here.'”

Shares of Facebook fell 4.9 per cent to USD 326.23 after the outage on Monday.

With files from Granthshala.ca producer Sonja Puzik and The Associated Press