Mark Zuckerberg commented on his company’s global outage, in a Facebook post on his restored site. Zuckerberg offered no explanation for what had happened, merely saying: "Facebook, Instagram, WhatsApp and Messenger are coming back online now. Sorry for the disruption today — I know how much you rely on our services to stay connected with the people you care about," he posted.

Facebook, Instagram, Messenger and WhatsApp fired up once again after roughly six hours of not functioning which prevented Facebook's 3.5 billion users from accessing its social media and messaging services. Facebook apologized but did not immediately explain what caused the outage, the largest ever tracked by web monitoring group Downdetector. Facebook stocks tumble following damning revelations. Stocks in Facebook plummeted almost 5% following Monday's outage aligned with an expose into the social media giant's operations.

Former employee Frances Haugen appeared on Sunday night television show "60 minutes" and revealed that she had been the source of internal documents and research showing the company knew of the harmful effects caused by its platforms. The data scientist said the company in its present form fuels hate, unrest and misinformation, and said that the organization knew about these issues, but did not act on them.