Bitly published an urgent security warning on Thursday explaining that it suspects that users’ account credentials have been compromised.

Twitter users using URL shortener Bitly were advised Friday to reset their passwords and secure their account after hackers managed to "compromise" some Bitly account credentials.

Bitly now also features a network view that lets you see the links your friends are sharing publicly on Twitter and Facebook.

You might think of Bitly simply as a service that shortens links for your Twitter feed. But to Hilary Mason, the company's chief scientist, Bitly is building a fresh new way to know what's going ...

But Bitly’s links are still hurtling through Twitter — about 20 percent of all links on Twitter, according to Josephson, are BitLinks as users relay them from sites that use the Bitly service.

Even after Twitter started shortening links, 30 percent of all links shared on the service are still powered by Bitly. The company powers around 30,000 different domains for people.

Bitly got its start as the preferred link-shortening service for Twitter (before Twitter launched its own), but the company is no longer limited to tracking Twitter.

Bitly wants the world to know that it's more than just a link shortening service. Historically, it was used by Twitter users to free up more room for words in the 140 character limit. By 2011, it ...

The simple link-shortening service Bitly just got a major redesign. What started as a way to make long links short enough to fit into a tweet has evolved into a social link-sharing site.

Bitly just posted an update to its blog noting that it has been listening to the feedback it has gotten since revamping its service last week and is making some changes to speed up its essential ...

Twitter was just ramping up, and Twitter used Bitly to shorten all the links its users generated, and that meant Bitly knew a ton about the way the internet worked — who clicked on what, when ...

How did Bitly get started? Bitly was started to solve a very simple problem: the links on Twitter were too long. We were really well positioned at that point as the default link shortener on ...