Facebook stock fell about 5.3 percent on Monday, while CEO Mark Zuckerberg’s personal wealth fell by roughly $7 billion on Monday according to Bloomberg. The entire S&P 500 fell by 1.3 percent on Monday, with the Nasdaq 100 dropping 2.2 percent and Dow Jones Industrial Average 0.9 percent.
The outage also blocked users from accessing accounts on Instagram and Whatsapp, which are both owned by Facebook. Stocks for other tech companies were also affected, with Google parent company Alphabet sliding 3.2 percent on Monday, and Netflix stocks dropping by 2.6 percent.
The problem followed an apparent change to Facebook’s routing information, Doug Madory, director of internet analysis at Kentik, told the Wall Street Journal. The change appeared to make Facebook’s domain name system servers unavailable, essentially preventing computers worldwide from accessing the domain name facebook.com.