Silicon Valley techpreneur Mark Zuckerberg’s personal wealth has fallen by nearly $7 billion in a few hours, knocking him down a notch on the list of the world’s richest people, after a whistleblower came forward and outages took Facebook Inc.’s flagship products offline, Bloomberg reports. Starnews Nigeria had reported that since 04:25pm on Monday, users visiting Facebook, Instagram, and WhatsApp were confronted with error messages. At least over three billion online users were frustrated and unable to connect all over the world due to the shutdown. Chief Technology Officer at Facebook, Mike Schroepfe, tweeted, “Sincere apologies to everyone impacted by