Job No. 1 for the new CEO: Revamp the stagnating microblogging service to make it more inviting for regular folks.
The English and Chinese sites for the news service have been inaccessible since late Thursday, but the reason isn't clear.
A hack of Experian, the company that handles credit checks for the wireless carrier, results in the loss of T-Mobile customers' Social Security numbers, birth dates and names.
A ruling by Europe's highest court puts the social network and thousands of other companies in a tough spot over how they handle user data.
Yuri Milner, who backed Facebook and Twitter, says his search for extraterrestrial life is in "listening mode."
Jack Dorsey is now CEO of both Twitter and Square. Running one big company is tough. Now he has two.
Ted Sarandos, the streaming service's head of content, says that in 10 years TV will be app-based and Net-delivered and will let viewers watch shows in any order they want. In other words, it'll be like Netflix.
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.
Technically Incorrect: Tesla's CEO wants to create constant nuclear pulse explosions so that there'd be two little suns to heat the planet and make it ready for our arrival.
The South Korean company's sales also should rise, but it didn't give any commentary on the expected results.