Facebook first acknowledged the problems in a tweet Wednesday at 1:49 p.m. ET, then said in a follow-up message that it was able to confirm the outages were not caused by distributed denial-of-service attack, in which networks are overloaded with bogus traffic created to disrupt service. It's believed to be the biggest interruption ever suffered by the social network.
The outages affected countless users and advertisers worldwide.
Telegram has gained as many as 3 million new members in the last 24 hours and for this sudden growth it has to thank Facebook. "We're working on getting it fixed as soon as we can". Facebook's ad platform, Facebook Ad Manager, was also down.
Pointing out that the Facebook outage also extended to its other properties, including Instagram and WhatsApp, Sarah Miller, the deputy director at the Open Markets Institute, which is for the break-up of Facebook and other Silicon Valley companies, said, "The more integrated a platform becomes, the greater the risk and reach of epic failures like this one".
People went on Twitter to vent their frustration about the problems.
Facebook's shares fell almost 2 percent in morning trading on Thursday.
The outages began Wednesday afternoonET and appeared to affect people in multiple regions, including the United States, Central and South America and Europe, according to tweets and the outage-tracking site DownDetector.com.
"Yesterday, a server configuration issue made it hard for people to access our apps and services".
"Yesterday, we made a server configuration change that triggered a cascading series of issues". "We've now resolved the issues and our systems are recovering".
Before Facebook's latest update, Instagram came back online.