jack Dorsey

Experts Skeptical of ‘ISIS’ Threats to Facebook, Twitter Founders

Mark Zuckerberg at a preview day of the the Mobile World Congress in Barcelona, Spain, Feb. 21, 2016. Alberto Estévez/EPA (ABC News) — A group of pro-ISIS hackers this week threatened the founders of the world’s largest social media sites, Facebook and Twitter, by posting a video online showing the faces of cyber CEOs Marc Zuckerberg and Jack Dorsey riddled…

Shakeup at Twitter as 4 Executives Leave the Company

Jack Dorsey, co-founder and CEO of Twitter and mobile payments company Square, waits for Square stock to open up on the New York Stock Exchange for the first day of public trading in New York, Nov. 19, 2015. Andrew Gombert/EPA (ABC News) — Twitter CEO Jack Dorsey said today four executives have chosen to leave the social networking company, marking…