Cyber Defence Analysis for Blue & Purple Teams
Summarised cyber defence technical content to help operational blue and purple teams be informed and protect their estates. By Ollie · Over 7,000 subscribers Subscribe No thanks By registering you agree to Substack's Terms of Service, our Privacy Policy, and our Information Collection Notice This site requires JavaScript to run correctly. Please turn on JavaScript or unblock scripts
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A guide on how to contribute to the Ayehu Custom Activities Repository
Interactive challenges demonstrating attacks on real-world cryptography.
An annual jeopardy-style capture-the-flag contest with challenges related to cybersecurity.
A repository aiming to archive all Android security presentations and whitepapers from conferences.
A cheatsheet for understanding privilege escalation with examples, not for enumeration using Linux Commands.
Comprehensive security training platform for web developers, offering hands-on experience with real, vulnerable applications and concrete advice for securing code.
Hacker wargames site with forums and tutorials, fostering a learning community.
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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.
OSINTLeak
OSINTLeak is a tool for discovering and analyzing leaked sensitive information across various online sources to identify potential security risks.
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.