As a result of a Freedom of Information Act lawsuit against the Department of Homeland Security, EPIC has obtained documents which reveal that the Department of Defense required companies to disclose information about Internet traffic on private networks. These documents contradict Homeland Security’s assertions that companies participating in a DOD pilot project would not be compelled to transmit information to federal agencies. The documents obtained by EPIC under the FOIA also indicate that the National Security Agency, a branch of the Department of Defense, is engaging in offensive cybersecurity measures. A statement to the Senate, EPIC warned that the National Security Agency has become a "black box" for public information about cybersecurity. For more information, see EPIC v. DHS: Defense Contractor Monitoring.