AshleyMadison: Who are the hackers behind the attack? via BBC

AshleyMadison: Who are the hackers behind the attack? via BBC
http://www.bbc.com/news/technology-34002053
http://blog.includesecurity.com/2015/08/forensic-analysis-of-the-AshleyMadison-Hack.html

AshleyMadison: More data leaks onto dark net
http://www.bbc.com/news/technology-34004741

AshleyMadison: Leaked accounts fallout deepens
http://www.bbc.com/news/technology-34002915

Please see also:
ArsTechnica article: AshleyMadison hack is not only real, it’s worse than we thought
http://onlinedatingsoundbarrier.blogspot.com.ar/2015/08/arstechnica-article-ashley-madison-hack.html