A British teenager has hacked both the FBI and the Department of Homeland Security. Using the tried and true method of social engineering, the teen managed to hack into an email account of a DOJ employee and then used that information to call in and gain access. Then he published the names and addresses of FBI and Department of Homeland Security agents online. Though the teen has been arrested, he claims to have over 300GB of more data that he plans to publish online.
Leo says that having a second factor authentication scheme at the DOJ would've solved this problem before it happened.