The open source security handbook in English. 84 chapters on web, network, cloud, executives, consumers, and reference material — concrete measures you can apply today.
These articles provide additional context and depth:
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17 chapters on securing web applications — from preventing injection attacks to a complete secure development lifecycle.
21 chapters on securing networks, Active Directory, Windows, Linux, and monitoring.
13 chapters on securing cloud environments — AWS, Azure, GCP, containers, CI/CD, and Infrastructure as Code.
10 chapters on cybersecurity from a board perspective — responsibility, compliance, budget, and crisis management.
10 chapters on digital safety for home users — recognizing phishing, passwords, privacy, and what to do when things go wrong.
14 chapters of reference material — compliance mapping, checklists, threat modeling, and security architecture.
