Linked In Officially confirms through the twitter that some of the linked in user accounts password has theft and its completely security attack.Linked in is constantly working on that to protect rest of the database system.They have data center in Washington, through that the attacks are started.
Linked In said in twitter nearly 6million passwords have been attacked still now.These accounts
are in compromised state.But the Linked In officially didnt announced that how many passwords are stealed or
which are the countries these attack has happened.so still it confirms that the rumour going on.