WhatsApp, Facebook, Instagram Blames “Faulty Configuration Change” for nearly Six-Hour Global Outage

Facebook Inc blamed a “faulty configuration change” for a nearly six-hour outage on Monday that prevented the company’s 3.5 billion users from accessing its social media and messaging services such as WhatsApp, Instagram and Messenger.

The company in a late Monday blog post did not specify who executed the configuration change and whether it was planned.

Accrding to Reuters, Several Facebook employees who declined to be named had told Reuters earlier that they believed that the outage was caused by an internal mistake in how internet traffic is routed to its systems.

The failures of internal communication tools and other resources that depend on that same network in order to work compounded the error, the employees said. Security experts have said an inadvertent mistake or sabotage by an insider were both plausible.

Facebook Engineering issued a state as

To all the people and businesses around the world who depend on us, we are sorry for the inconvenience caused by today’s outage across our platforms. We’ve been working as hard as we can to restore access, and our systems are now back up and running. The underlying cause of this outage also impacted many of the internal tools and systems we use in our day-to-day operations, complicating our attempts to quickly diagnose and resolve the problem.

Our engineering teams have learned that configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues that interrupted this communication. This disruption to network traffic had a cascading effect on the way our data centers communicate, bringing our services to a halt.

Our services are now back online and we’re actively working to fully return them to regular operations. We want to make clear at this time we believe the root cause of this outage was a faulty configuration change. We also have no evidence that user data was compromised as a result of this downtime.

People and businesses around the world rely on us everyday to stay connected. We understand the impact outages like these have on people’s lives, and our responsibility to keep people informed about disruptions to our services. We apologize to all those affected, and we’re working to understand more about what happened today so we can continue to make our infrastructure more resilient.

As our platforms are coming back online, we wanted to share some more information about today’s outage and what caused it. https://t.co/JkZnn2I37g
— Facebook Engineering (@fb_engineering) October 5, 2021

Earlier, for a nearly six-hour outage on Monday that prevented the company’s 3.5 billion users from accessing its social media and messaging services such as WhatsApp, Instagram, FAcebook and Messenger.

Face book appologises the using Tweeter account during the outage WhatsApp, Instagram Facebook and and Messenger.

To the huge community of people and businesses around the world who depend on us: we’re sorry. We’ve been working hard to restore access to our apps and services and are happy to report they are coming back online now. Thank you for bearing with us.

To the huge community of people and businesses around the world who depend on us: we're sorry. We’ve been working hard to restore access to our apps and services and are happy to report they are coming back online now. Thank you for bearing with us.
— Facebook (@Facebook) October 4, 2021