Facebook founder Mark Zuckerberg and Google head Sundar Pichai’s Twitter accounts were allegedly hacked by a young man living in Saudi Arabia who goes by the name “Ahmad Makki” on social media, BuzzFeed reported.

The schoolboy, presumably, is a member of hacking group OurMine. It is considered that the same hacker is responsible for Uber CEO Travis Kalanick and other celebrities’ accounts hackings.

Buzfeed found out that Makki's email was revealed during one of the hackings and it gave a chance to find his Instagram. An image on his Instagram profile from 2013 shows that the biography text on the page used to read “Our-Mine.net.” OurMine denied that Makki is a member.