Google reports that they discovered a "subtle flaw affecting not 2-step verification itself, but the account recovery flow for some accounts.
http://blog.cloudflare.com/post-mortem-todays-attack-apparent-google-app
https://twitter.com/#!/newsycombinator
UGNazi ,cosmo
The Federal Bureau of Investigation has since been involved in the ongoing investigation
http://en.wikipedia.org/wiki/UGNazi
Hacktivist Group (UGNazi)
Cosmo is alleged to be the leader of four-man hacktivist group UGNazi
Cosmo (Alex Irvin) & CyberZeist (Thomas Ryan) http://ugnazi.com/
"Cosmo," a Staten Island-based gizmodo.com/.../clueless-hackers-who-just-took-down-dc-g
http://www.h-online.com/security/news/item/Man-arrested-for-hacking-into-billing-provider-1587517.html