Cyber Threats and Response - CISA
Nov 12, 2025 · Sophisticated cyber actors and nation-states exploit vulnerabilities to steal information and money and work to develop capabilities to disrupt, destroy, or threaten the delivery of essential …
Home Page | CISA
Feb 26, 2026 · JCDC unifies cyber defenders from organizations worldwide. This team proactively gathers, analyzes, and shares actionable cyber risk information to enable synchronized, holistic …
Iranian-Affiliated Cyber Actors Exploit Programmable Logic ... - CISA
Apr 7, 2026 · See Table 2 to Table 4 for all referenced threat actor tactics and techniques in this advisory. The authoring agencies recommend organizations review historical TTPs for similar Iranian …
Cybersecurity Best Practices | Cybersecurity and Infrastructure ... - CISA
Dec 8, 2025 · CISA provides information on cybersecurity best practices to help individuals and organizations implement preventative measures and manage cyber risks.
What is Cybersecurity? | CISA
Feb 1, 2021 · What is cybersecurity? Cybersecurity is the art of protecting networks, devices, and data from unauthorized access or criminal use and the practice of ensuring confidentiality, integrity, and …
Cybersecurity Alerts & Advisories | CISA
Apr 8, 2026 · Cybersecurity Advisory: Provides detailed information on cyber threats, including threat actor tactics, techniques, and procedures and indicators of compromise, along with recommended …
Cybersecurity | Homeland Security
Jan 12, 2026 · The Department of Homeland Security and its components play a lead role in strengthening cybersecurity resilience across the nation and sectors, investigating malicious cyber …
Poland Energy Sector Cyber Incident Highlights OT and ICS ... - CISA
In December 2025, a malicious cyber actor (s) targeted and compromised operational technology (OT) and industrial control systems (ICS) in Poland’s Energy Sector—specifically renewable energy …
CISA Urges Endpoint Management System Hardening After …
Mar 18, 2026 · CISA is aware of malicious cyber activity targeting endpoint management systems of U.S. organizations based on the March 11, 2026 cyberattack against U.S.-based medical technology …
Incident Response | Cybersecurity and Infrastructure Security ... - CISA
Overview Cyber incidents can harm U.S. national security interests, foreign relations, and the economy and can impact public confidence, civil liberties, and health and safety. Because of this risk, all …