Mark Zuckerberg, Facebook founder and CEO, has registered over $6 billion loss in personal wealth following the monumental crash of Facebook, WhatsApp and Instagram platforms on Monday.

Facebook Inc’s stocks came plummeting by 4.9 per cent on Monday Zuckerberg’s worth down to $121.6 billion, according to reports by various international media houses.

The six-hours outage sent Zuckerberg a notch down the list of the world’s richest people setting him down below Microsoft’s Bill Gates at number 5 on the Bloomberg Billionaire Index.

The outage came as a double blow after a whistleblower Frances Haugen revealed herself for the first time and accused Facebook Inc of putting profit over the safety of its users among other damaging accusations.

The disclosures have kicked off a firestorm for Facebook in Washington as officials blame the organization for concealing inside research about its negative consequences.

As a result, Facebook’s shares went down, hitting its lowest level at $327.66 since June 21.

The three Facebook-owned social media platforms went down in a major global outage on Monday.

Facebook’s spokesperson Andy Stone apologized to users through his Twitter account for the inconveniences caused by the outage but did not mention the cause of the same.

Individual Apps and products also took to their official Twitter accounts to acknowledge their service disruption and offered apologies.