OWASP 2026: Prompt Injection Named the #1 LLM Threat, Up 340% Year-Over-Year
OWASP 2026 (analysis)·low signal
OWASP's 2026 LLM security guidance again ranks prompt injection as the top threat, with reports of a 340% YoY surge making it the fastest-growing attack category — context that frames this week's JadePuffer agentic-ransomware incident and Traceforce's launch. For builders, the practical takeaway is that indirect/tool-mediated injection (not just direct user prompts) is where defenses keep failing. Guidance-and-analysis piece rather than breaking news, hence low importance.