Update: Facebook has tweeted out saying that their outage, which began just before lunch Wednesday, was not due to a distributed denial-of-service, or DDoS, attack. 

The National Cybersecurity and Communications Integration Center describes a DDoS attack as an, "attack [that] occurs when multiple machines are operating together to attack one target. DDoS allows for exponentially more requests to be sent to the target, therefore increasing the attack power. It also increases the difficulty of attribution, as the true source of the attack is harder to identify." 

We're focused on working to resolve the issue as soon as possible, but can confirm that the issue is not related to a DDoS attack.

— Facebook (@facebook)March 13, 2019 

Original story:

Just before noon today, people across the U.S. and in other parts of the world started reporting that they couldn’t access or post to both Instagram and Facebook.

According to an outage map and comments on Downdetector.com, people seem to be experiencing the outage in other countries as well.

Issues range from people not being able to log in to the services at all to general slowness. Facebook’s messenger app also seems to be affected by the outage.

In a tweet, Facebook acknowledged the outage and said that the company was working to get the service back online.

We’re aware that some people are currently having trouble accessing the Facebook family of apps. We’re working to resolve the issue as soon as possible.

— Facebook (@facebook)March 13, 2019

Facebook is having issues since 12:01 PM EDT.https://t.co/BLSiYCF9KL RT if it's down for you as well#Facebookdown

— DownDetector (@downdetector)March 13, 2019

The general gist is: