Facebook and its photo-and-video sharing app Instagram were back online around 6 p.m. Eastern Monday after an hours-long outage that began at midday. WhatsApp reportedly was coming back in some places, while other customers were still having difficulties getting service Monday evening.
Facebook shares fell 4.89% to close at $326.23. The stock edged higher in after-hours trade.
All three platforms stopped working shortly before noon Eastern on Monday.
The social networking platforms were down for about six hours, one of the longest outages in the history of Facebook. In addition, Facebook’s internal tools and communications platforms, including Workplace, were affected as well, according to published reports.