1. NIST Cybersecurity (National Institute of Standards and Technology)
NIST is a U.S. government agency that develops cybersecurity standards, guidelines, and frameworks used worldwide. Its Cybersecurity Framework (CSF) and Special Publications (like SP 800-53 and SP 800-171) are widely adopted by businesses, government agencies, and contractors to strengthen risk management, compliance, and security controls.
🔗 https://www.nist.gov/cybersecurity
2. CIS (Center for Internet Security)
CIS is a nonprofit organization best known for its CIS Controls and CIS Benchmarks, which provide practical, prioritized guidance for securing IT systems, networks, and applications. They also maintain the Multi-State Information Sharing and Analysis Center (MS-ISAC), helping U.S. state and local governments defend against cyber threats.
🔗 https://www.cisecurity.org
3. CISA (Cybersecurity and Infrastructure Security Agency)
CISA is the U.S. federal agency responsible for protecting critical infrastructure against cyber and physical threats. They provide free resources such as vulnerability alerts, ransomware guides, incident response playbooks, and threat intelligence sharing. CISA also partners with private organizations and government entities to build national resilience against cyberattacks.
🔗 https://www.cisa.gov
4. ENISA (European Union Agency for Cybersecurity)
ENISA is the European Union’s dedicated cybersecurity agency. It supports EU member states, institutions, and businesses by developing cybersecurity strategies, conducting threat landscape analyses, and publishing best-practice guidelines. ENISA is also responsible for implementing the EU Cybersecurity Act and overseeing certification schemes for digital products and services.
🔗 https://www.enisa.europa.eu
5. ISO/IEC (International Organization for Standardization – Information Security Standards)
ISO, along with the International Electrotechnical Commission (IEC), develops international standards for information security. The ISO/IEC 27000 series (including ISO/IEC 27001) sets globally recognized requirements for establishing, implementing, and maintaining information security management systems (ISMS). Organizations across industries pursue ISO certification to demonstrate strong governance and compliance.
🔗 https://www.iso.org/isoiec-27001-information-security.html
6. OWASP (Open Web Application Security Project)
OWASP is a global nonprofit focused on improving software security. Its most famous resource, the OWASP Top 10, identifies the most critical web application vulnerabilities. OWASP provides open-source tools, documentation, and training for developers, engineers, and organizations seeking to improve their application security posture. The community-driven model makes it highly practical and up-to-date.
🔗 https://owasp.org
7. FIRST (Forum of Incident Response and Security Teams)
FIRST is an international consortium that brings together security and incident response teams from governments, academia, and private industry. It promotes collaboration, best practices, and research in incident response and vulnerability coordination. Membership gives organizations access to global expertise, joint training opportunities, and faster responses to emerging threats.
🔗 https://www.first.org
8. CERT/CC (Computer Emergency Response Team Coordination Center – Carnegie Mellon University)
CERT/CC, established at Carnegie Mellon, is one of the oldest and most respected cybersecurity response centers in the world. It conducts pioneering research on software vulnerabilities, insider threats, and secure coding practices. CERT/CC also provides vulnerability disclosure coordination and resources for organizations to strengthen operational security and resilience.
🔗 https://www.sei.cmu.edu/about/divisions/cert/
9. US-CERT (United States Computer Emergency Readiness Team – part of CISA)
US-CERT helps organizations and the public stay ahead of cyber threats by issuing technical alerts, bulletins, and best-practice guides. They provide vulnerability notes, malware analysis, and situational awareness about ongoing cyber campaigns. Their resources are especially useful for IT security teams seeking timely, actionable intelligence.
🔗 https://www.cisa.gov/uscert
10. NCSC (National Cyber Security Centre – UK)
NCSC is the UK’s official cybersecurity authority, part of GCHQ (Government Communications Headquarters). It offers guidance for businesses, public-sector organizations, and individuals on how to defend against cybercrime and state-sponsored threats. NCSC also assists with national-level incident response and publishes detailed reports on threat trends, cloud security, and supply chain risks.
🔗 https://www.ncsc.gov.uk
