"We have taken immediate action to indefinitely suspend their services in connection with RockYou and we are reviewing all third-party providers to ensure compliance with our platform partners' terms of service, " she said.

WSJ: MySpace, Apps Leak User Data

Note: Canalys defines a client PC as a computing device designed to be operated by an individual and positioned to serve a broad range of purposes, achieved by running third-party applications, some of which can work independently of a network connection.

ENGADGET: Canalys: PC and tablet shipments hit new high in Q2 with Apple in the lead, HP next in line

What's neat is that users can manually disable a connection with these apps anytime they want, and when they do, these third-party developers are required to delete user data from their servers.

ENGADGET