What is CISA?

CISA stands for the Cybersecurity and Infrastructure Security Agency. It is a U.S. federal agency within the Department of Homeland Security that works to defend against cyber threats and physical threats to critical infrastructure. CISA provides cybersecurity tools, incident response services, and assessment capabilities to safeguard the 'cyber and physical infrastructure' Americans rely on every hour of every day. It's commonly used as a resource for cybersecurity best practices, threat intelligence, and incident response coordination for both government and private sector organizations.