About

OverflowMyBuffers is a public collection of cybersecurity and penetration-testing notes, cheatsheets and guides maintained by Rudy Dijkstra, an ethical hacker and penetration tester based in the Netherlands.

The notes are drawn from real pentesting engagements across Active Directory, cloud (AWS, Azure, GCP, Kubernetes), web and mobile applications, reverse engineering, and red-team tradecraft, as well as study notes for industry certifications such as OSCP, OSEP, OSWE, OSED, OSWA and OSMR. They are shared so others can learn from, correct and build on them.

Experience & focus

• Penetration testing and red-team assessments for a range of clients
• Active Directory and identity attack paths
• Cloud and container security (AWS, Azure, GCP, Docker, Kubernetes)
• Web and mobile application security
• Exploit development and reverse engineering

Contact

GitHub · LinkedIn · info@overflowmybuffers.com

Spotted an error or want to contribute? Reach out via any of the links above — together we can make the world a safer place.