article: After the AshleyMadison hack, a class-action lawsuit is underway.

http://fusion.net/story/186430/after-the-ashley-madison-hack-a-class-action-lawsuit-is-under-way/

Please see:
AshleyMadison: Who are the hackers behind the attack? via BBC
http://onlinedatingsoundbarrier.blogspot.com.ar/2015/08/ashleymadison-who-are-hackers-behind.html