The site said that attackers had attempted to steal the login information of users who had used their Twitter password username and password to sign up for an untrusted third-party application. Officials didn't disclose just how many accounts had their passwords changed, saying only that the third-party application had used the login information to post tweets to their accounts.

"As part of Twitter's ongoing security efforts, we reset passwords for a small number of accounts that we believe may have been compromised offsite," Twitter said in a statement. "While we're still investigating and ensuring that the appropriate parties are notified, we do believe that the steps we've taken should ensure user safety."

Being able to rapidly share information, links, photos and videos is big part of Twitter's allure. But their popularity has long made them a prime target for online criminals.

Read the full story at Datamation:
Phishing Ploy Forces Twitter to Reset Passwords