This resource provides a comprehensive list of college and university-level courses covering various topics in computer science, including data structures, algorithms, software engineering, artificial intelligence, machine learning, computer networks, security, and more. Please refer to the NOTES section for general information and CONTRIBUTING.md for contribution guidelines.
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Linux-based operating system intentionally vulnerable for cybersecurity practice.
Collection of industry and community cybersecurity courses and materials by M. E. Kabay.
Introductory book about cryptography with instructions for building and translating.
An AI-powered career platform that automates the creation of cybersecurity job application materials and provides company-specific insights for job seekers.
Intentionally vulnerable Kubernetes cluster environment for learning and practicing Kubernetes security.
A comprehensive list of search filters for the SHODAN search engine.
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Mandos Brief Newsletter
A weekly newsletter providing cybersecurity leadership insights, industry updates, and strategic guidance for security professionals advancing to management positions.

PTJunior
An AI-powered penetration testing platform that autonomously discovers, exploits, and documents vulnerabilities while generating NIST-compliant reports.

CTIChef.com Detection Feeds
A tiered cyber threat intelligence service providing detection rules from public repositories with varying levels of analysis, processing, and guidance for security teams.

ImmuniWeb® Discovery
ImmuniWeb Discovery is an attack surface management platform that continuously monitors an organization's external digital assets for security vulnerabilities, misconfigurations, and threats across domains, applications, cloud resources, and the dark web.

Checkmarx SCA
A software composition analysis tool that identifies vulnerabilities, malicious code, and license risks in open source dependencies throughout the software development lifecycle.

Orca Security
A cloud-native application protection platform that provides agentless security monitoring, vulnerability management, and compliance capabilities across multi-cloud environments.

DryRun
A GitHub application that performs automated security code reviews by analyzing contextual security aspects of code changes during pull requests.