Queena Kim

Twitter's going public! But no-one quite knows how the company expects to generate revenue. And for now, Twitter's not telling.

Twitter announced today -- over Twitter -- that it's going public. The news wasn't much of a surprise, but the way in which the company filed papers with the SEC is a bit of a mystery.

It's easier to hack the human mind than a computer network. Here's a case study that shows how it's done.

Google says it’s going to boost its encryption efforts to better safeguard our data. It can't promise to keep us totally secure, but the effort's worth plenty of PR points.

The late night host and comedian returns to TV with a new CBS talk show.

Hackers often infiltrate corporate networks by hacking people, not software, tricking them into giving up passwords.

The next generation in mobile technology development: It's all in the wrist.

Today, Verizon Communications agreed to buy out Vodafone's 45 percent stake in its giant wireless unit for $130 billion.

A wireless Internet-connected device that can block any TV ads -- will it change television?

Ballmer has led the company at a difficult time for the tech giant, which has struggled to transition its products out of the PC era.