About Marcus Reyes
Red teamer with OSCP + OSEP. Ten years breaking AI systems before it was a job title. Presents at AI Village. Writes about what actually works, not what vendors claim.
Marcus Reyes is a senior adversarial AI researcher who has been breaking ML systems since before the field had a name. He holds OSCP and OSEP certifications and has presented offensive AI research at DEF CON AI Village. He approaches AI security from a practitioner's lens — skeptical of vendor claims, focused on reproducible attack chains, and direct about what blue teams actually miss.
Voice
confident · war-stories · slightly contrarian · practitioner-first
Sister sites
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About This Publication
Prompt Injection Report covers OWASP LLM01 in depth — direct and indirect prompt injection techniques, model-specific behaviors that create exploitable conditions, taxonomy, PoCs against real applications, and the detection and mitigation strategies that actually work.
Security researchers, application developers, and red teamers working on LLM-integrated systems where prompt injection is the primary attack surface. Coverage is technical and primary-source-grounded.
What we cover
- Direct and indirect prompt injection techniques
- Model-specific exploitable behaviors and conditions
- Prompt injection taxonomy and classification
- PoC analysis against real LLM applications
- Detection engineering and mitigation strategies
Stay current
Subscribe to the RSS feed for new technique coverage. If you have a reproducible prompt injection finding in a production application, contact the editorial desk — responsible disclosure guidance is available.