Note: This page is part of the archive.

Archived Content

In an effort to keep current, the archive contains outdated information that may not reflect current policy or programs.

Preventing and Defending Against Cyber Attacks

The Department of Homeland Security (DHS) is responsible for helping Federal Executive Branch civilian departments and agencies secure their unclassified networks (.gov). DHS also works with owners and operators of critical infrastructure and key resources (CIKR)—whether private sector, state, or municipality-owned—to bolster their cybersecurity preparedness, risk assessment and mitigation and incident response capabilities.

Taxonomy Topics