01OWASP Top 10 for LLM Applications
The OWASP GenAI Security Project's catalog names the most critical vulnerability classes in LLM applications — from Prompt Injection (LLM01:2025) through Sensitive Information Disclosure (LLM02) and Supply Chain (LLM03) to Excessive Agency (LLM06). Six of the ten risks directly concern data security. Development and AppSec teams use the list as a testing and requirements perspective when building and testing LLM systems.
02MITRE ATLAS: the attacker's perspective
MITRE ATLAS catalogs real-world attack tactics and techniques against AI systems — analogous to the ATT&CK matrix, with tactics from reconnaissance through resource development to exfiltration and technique IDs such as AML.T0051. The framework consistently takes the attacker's perspective, making it the foundation for red and purple teaming against AI systems.
03NIST AI RMF: the risk management framework
The NIST AI Risk Management Framework structures risk management across the entire AI lifecycle along the four core functions GOVERN, MAP, MEASURE, and MANAGE. It addresses trustworthiness and governance and is aimed at CISOs and risk management — as a framework in which technical findings are translated into policies, processes, and responsibilities.
04Interplay: Build · Test · Govern
The three frameworks do not compete — they complement each other: OWASP supports secure development (developers, DevSecOps), MITRE ATLAS supports adversarial validation (red/purple teams), and NIST AI RMF anchors governance and risk (CISO, risk management). Concrete measures can be mapped to all three — input validation and prompt filtering, for example, to LLM01, AML.T0051, and the MAP/MANAGE functions.
05A practical start in four steps
The sequence Assess, Test, Govern, Protect has proven effective: first, an inventory of all LLM deployments and the current security status; then adversarial testing against the OWASP Top 10 and MITRE ATLAS tactics; followed by building AI governance based on the NIST AI RMF. The final step is the continuous implementation of layered security measures in ongoing operations.
06Solutions landscape and tool classification
For tool selection, the OWASP GenAI Security Project maintains a vendor-neutral Solutions Landscape, updated quarterly: open-source and commercial solutions are classified along the LLMSecOps lifecycle phases — from Scope & Plan through Test & Evaluate to Govern — and mapped to the Top 10 risks. A dedicated landscape for agentic architectures has existed since Q3 2025; the associated risks are described in the OWASP Top 10 for Agentic Applications 2026.