Official: What caused the fall of Facebook, Instagram and WhatsApp for 22 hours

Facebook said its big blackout on Wednesday (which lasted 22 hours and was the longest in its history) was due to a "server configuration change".

On Wednesday, the social network and its sister apps Instagram, WhatsApp and Messenger, have been used by many users around the world.

In a statement to the developers, the firm led by Mark Zuckerberg explained that the blockade had started at 16:00 GMT on Wednesday (the morning of America and the evening in Europe) and had lasted almost a whole day, still active for the two countries. during a part of Thursday.

While occasional interruptions to Facebook's services were not uncommon, they were unprecedented in scope, causing considerable disruption for most of the working day as the company struggled to resolve the problem. .

After almost no communication about the power outage beyond recognition, Facebook on Thursday revealed more information on what was not going well.

"Yesterday, we changed the server configuration, which caused a series of cascading problems, and as a result, many people had difficulty accessing our applications and services," a Business Insider spokesman said. .

"We have solved the problems and our systems have recovered in the last few hours, we are sorry for the inconvenience and we appreciate everyone's patience," the brief statement added.