The trouble began on Monday as users around the world opened WhatsApp, Instagram and Facebook to error messages that remained for hours. Countless websites and applications use Facebook’s advertising network, one of the largest in the world, meaning effects from the outage extended far beyond the platform’s users, Luke Deryckx, the chief technology officer for Ookla, wrote in the Downdetector blogpost. The outage affected potentially tens of millions of users, organizations and businesses, highlighting the widespread global dependency on Facebook and its platforms. “We are also seeing an increase in reports across many other online sites and services as the Facebook outage causes cascading impacts,” the blog post said. “Facebook is currently experiencing a rarely seen global outage that is taking out Facebook, Instagram, WhatsApp and Facebook Messenger.” As of 1pm PDT, Downdetector said it had seen more than 10.6m problem reports from around the world, with the majority coming from the US, Germany, the Netherlands and the UK. In a blog post, Downdetector said the outage was global and the largest it had ever seen. A map on the site showed, for instance, reports of outages.

“This disruption to network traffic had a cascading effect on the way our data centres communicate, bringing our services to a halt.įacebook said it had “no evidence” that user data was compromised.įacebook, Instagram and WhatsApp became inaccessible for large numbers of people at about 5pm UK time (12pm ET), with citing reports of problems from millions of social media users around the world. “Our engineering teams have learned that configuration changes on the backbone routers that coordinate network traffic between our data centres caused issues that interrupted this communication,” the statement said.

In a later blog post, it said faulty configuration changes on its routers were the root cause of the nearly six-hour outage. We’ve been working hard to restore access to our apps and services and are happy to report they are coming back online now,” Facebook tweeted. “To the huge community of people and businesses around the world who depend on us: we’re sorry.

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