At a U.S. Senate hearing on Tuesday, a former employee turned whistleblower accused Facebook of putting profits before people's safety, which the company denies.
"Facebook's products harm children, stoke division and weaken our democracy," the whistleblower said
Haugen, a former product manager on Facebook's civic misinformation team, says the social media giant keeps its algorithms and operations a secret
The stock slide sent Zuckerberg's worth down to $120.9 bn, dropping him below Bill Gates to No. 5 on the Bloomberg Billionaires Index
If the networking problem that brought down services aren't enough, whistle-blower Frances Haugen will appear before a Senate subcommittee on Tuesday
Facebook employees and contractors complained that they were unable to log on to their work accounts during the company's worst service outage since 2008.
Millions of new users joined the Edward Snowden-endorsed Signal on Monday, it said on Twitter
"This disruption to network traffic had a cascading effect on the way our data centers communicate, bringing our services to a halt," the company's engineering team wrote in a blog post Monday night
The company in a late Monday blog post did not specify who executed the configuration change and whether it was planned.
All of Facebook's services, including WhatsApp and Instagram, were down for users globally beginning Monday night.
Not only did Facebook's primary platforms go down, but so too did some of its internal applications, including the company's own email system
Facebook CEO's worth down to $120.9 billion, dropping him below Bill Gates to No. 5 on the Bloomberg Billionaires Index.
Facebook's engineering team apologised as the apps started to come back online
"WhatsApp", and "#facebookdown", "#whatsappdown" and "#instagramdown" were trending on Twitter on Monday evening in India
Frances Haugen identified as the woman who anonymously filed complaints with US law enforcement that Facebook's own research shows how it magnifies hate and misinformation.
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'We will have exciting things to share over the next few months (on Jio Mart-WhatsApp collaboration)', said Ajit Mohan
The whistle-blower, who already shared a trove of internal documents with the Wall Street Journal, will appear in an interview on "60 Minutes" Sunday evening
Facebook executive Nick Clegg, in a defiant internal memo, said that a former employee will accuse the company of contributing to the US Capitol riot, the New York Times reported on Saturday.