Facebook and Instagram were down for about 14 hours earlier this week, and earlier reports suggested that the underlying cause was a BGP routing issue. As time went on without an official explanation, many started to suspect that the outage was related to an attack on the platform. But yesterday, Facebook tweeted that the trouble was a "result of a server configuration change." There's still no mention of the incident in Facebook's official newsroom, and some news outlets are starting to criticize the timeliness of Facebook's response and explanation. One security analyst told the BBC that "Facebook's motto always used to be 'move fast and break things'. That's fine when you're an innovative start-up, but when billions of people are using your site every month it's not a good way to run the business." Yesterday, as a result of a server configuration change, many people had trouble accessing our apps and services. We've now resolved the issues and our systems are recovering. We're very sorry for the inconvenience and appreciate everyone's patience.