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Last.fm is latest social network to investigate password 'leak'

Last FM posted a security update on its website today. Credit: Last.fm/passwordsecurity

Last.fm has become the latest social network to reveal it is investigating the leak of some of its users' passwords.

A message posted on its website today has urged account holders to log in and change password as a precautionary measure.

The music streaming and statistics service had 30 million active users in March 2009.