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  1. 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 …

  2. Cybersecurity | Homeland Security

    4 days ago · Cybersecurity The Department of Homeland Security and its components play a lead role in strengthening cybersecurity resilience across the nation and sectors, investigating malicious cyber …

  3. Home Page | CISA

    Additional CISA Resources CISA Resources & Tools CISA offers an array of free resources and tools, such as technical assistance, exercises, cybersecurity assessments, free training, and more.

  4. Cybersecurity Training & Exercises | CISA

    Cybersecurity Training & Exercises CISA looks to enable the cyber-ready workforce of tomorrow by leading training and education of the cybersecurity workforce by providing training for federal …

  5. TOP CYBERSECURITY BEST PRACTICES USE STRONG PASSWORDS Strong Passwords BACK UP DATA

  6. Enhanced Visibility and Hardening Guidance for Communications

    Dec 4, 2024 · This guide provides network engineers and defenders of communications infrastructure with best practices to strengthen their visibility and harden their network devices against successful …

  7. DHS Launches Over $100 Million in Funding to Strengthen ... - CISA

    Aug 1, 2025 · WASHINGTON – Today, the Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Emergency Management Agency (FEMA) announced the availability of over $100 million …

  8. #StopRansomware: Interlock - CISA

    Jul 22, 2025 · Summary Note: This joint Cybersecurity Advisory is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and …

  9. AI Cybersecurity Collaboration Playbook - CISA

    Jan 14, 2025 · The AI Cybersecurity Collaboration Playbook provides guidance to organizations across the AI community –including AI providers, developers, and adopters – for sharing AI-related …

  10. Creating an asset inventory is necessary for building a modern defensible architecture and one of CISA’s Cybersecurity Performance Goals (CPGs).1 A modern defensible architecture mitigates risk …