Damn Vulnerable Linux (DVL) is a Linux-based operating system that is intentionally vulnerable to security attacks, designed for practicing and learning cybersecurity techniques.
FEATURES
ALTERNATIVES
A comprehensive incident response and threat hunting tool for Google Cloud Platform, providing logs and forensic data for effective incident response and threat hunting.
A documentation template library for implementing industrial information security management systems.
Blue-team capture the flag competition for improving cybersecurity skills.
A collection of lab scripts and files for learning about containers and container internals.
Find books at your favorite store and stay updated on new features with Universal Book Links.
A blog post discussing the differences between Solaris Zones, BSD Jails, VMs, and containers, with the author arguing that containers are not a real thing.
Comprehensive security training platform for web developers, offering hands-on experience with real, vulnerable applications and concrete advice for securing code.
PINNED

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.