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Try Hack Me – Gamified Cybersecurity training. Free rooms (courses) available.
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Sans.org – In-person, live online, and on-demand Cybersecurity training
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San Diego Public Library – online certificate prep such as A+ and Network+ available. Start dates are every month. Must obtain a free library card.
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ISC2 – currently giving out the course Certified in Cybersecurity for free for the first 1 million users who sign up.
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San Diego College of Continuing Education – San Diego College offers a Certificate of Completions for Cybersecurity Analyst and Cyber Threat Response. Classes are perfect for working adults as they occur during the evenings. Some classes are online, and others are hyflex.
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San Diego Regional Cyber Lab – A place for individuals to practice their Cybersecurity skills in a live environment. Windows and Mac hosts are available. Forensics hardware and software used by law enforcement are available as well.
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MITRE ATT&CK®– globally-accessible knowledge base of adversary tactics and techniques based on real-world observations. The ATT&CK knowledge base is used as a foundation for developing specific threat models and methodologies in the private sector, in government, and in the cybersecurity product and service community.
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Hacksplaining – easy-to-read and understand explanations of vulnerabilities. Registration unlocks other free lessons.
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OSINT Framework – OSINT (open source intelligence) framework focused on gathering information from free tools or resources.
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The National Initiative for Cybersecurity Careers and Studies (NICCS) – This is an online resource for cybersecurity training that connects Government employees, students, educators, and industry with cybersecurity training providers throughout the Nation. Public courses available.
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Hack the Box – leading gamified cybersecurity upskilling, certification, and talent assessment software platform enabling individuals, businesses, government institutions, and universities to sharpen their offensive and defensive security expertise.
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FedVTE – The Federal Virtual Training Environment (FedVTE) provides free online cybersecurity training to federal, state, local, tribal, and territorial government employees, federal contractors, and US military veterans.
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Purdue Univ Northwest – Free Online Cybersecurity Workforce Certification Training. Open to USA citizens and permanent residents.