Posts under the category Cybersecurity & Defense

Introduction: The AI Security Audit LandscapeIn the rapidly evolving landscape of cybersecurity and code auditing, artificial intelligence has become an indispensable tool for security researchers and companies worldwide. The integration of AI into vulnerability detection and code review processes represents a paradigm shift in how we approach software security. However, not all AI models perform equally when tasked with the critical responsibility of identifying security flaws.This comprehensive analysis explores a fascinating discovery: wh...

Executive SummaryThis document presents a detailed penetration testing case study based on a simulated enterprise environment. The engagement demonstrates a complete attack chain from initial reconnaissance through external-facing services to full domain compromise. The scenario illustrates common security weaknesses found in real-world environments and provides educational insights into both offensive techniques and defensive considerations.Learning Objectives:Understanding web application vulnerability identificationLearning remote code ex...

This comprehensive writeup documents the complete penetration testing process for the Chunqiu Yunjing Initial CTF challenge, covering the entire attack chain from initial reconnaissance through domain controller compromise.Target Environment InformationThe challenge provides a simulated professional scenario with the following target IP: 39.99.151.82. It's worth noting that the target IP may vary depending on when the challenge environment is instantiated, though the internal network addressing remains consistent across deployments.Phase 1: ...

Executive SummaryAnthropic has officially announced Claude Mythos Preview, representing a generational leap in AI safety capabilities. However, rather than public release, the company is initially limiting access through Project Glasswing—a collaborative security initiative partnering with 40+ leading institutions to first deploy this "super vulnerability discovery capability" for defensive purposes.This announcement marks a pivotal moment in AI development, where capability advancement necessitates unprecedented responsibility and controlle...

Introduction: A New Era in AI CapabilityIn April 2026, Anthropic announced what may represent the most significant advancement in AI capability to date: Claude Mythos Preview. This isn't merely another incremental improvement in language model performance. Mythos represents a fundamental shift in what AI systems can accomplish—particularly in the realm of cybersecurity—so profound that Anthropic has chosen not to release it publicly.Instead, through an initiative called Project Glasswing, Anthropic is providing Mythos exclusively to 40+ lead...

IntroductionThis comprehensive walkthrough documents the complete penetration testing methodology employed against the Garfield machine from Hack The Box Season 10. The target represents a sophisticated Windows Active Directory environment, presenting multiple attack vectors that demonstrate real-world domain compromise scenarios. Understanding these techniques is crucial for security professionals tasked with defending enterprise networks against advanced persistent threats.The engagement follows a structured approach: initial reconnaissanc...