Job No. 1 for the new CEO: Revamp the stagnating microblogging service to make it more inviting for regular folks.
One of Twitter's co-founders has come back to help the troubled social-networking company. Seen as part artist, part visionary, the question facing Dorsey now is whether he can turn the company around.
Hosain Rahman also says sales of his company's fitness wearables haven't been hurt by the Apple Watch.
John Chen says that if BlackBerry's smartphone business doesn't turn a profit next year, he'll have to "think twice" about it.
That's the only way they'll solve real problems, says Glenn Lurie, speaking at the Code Mobile conference. He also notes that the iPhone 6S has sold well.
Despite past differences, Williams says his relationship with the new chief executive is stronger than it has been "in years."
Jack Dorsey is now CEO of both Twitter and Square. Running one big company is tough. Now he has two.
Nearly a year after a crippling hack, the studio's boss says he was distressed by how some people combed leaked emails for embarrassing information.
Alwaleed bin Talal spends $50 million to become Twitter's second-biggest shareholder, despite his earlier reservations about Jack Dorsey being made full-time chief.
Twitter co-founder Jack Dorsey has been picked to lead the social-media company for a second time. CNET's Lexy Savvides explains what that means for Twitter users and the struggling company.