Analysis
What are prompt injection attacks? Definition, types, examples
Publication date unknown · Discovered fortinet.com
Page published
Publication date unknown · First observed: 29 Oct 2026
Coverage timeline
Single-source analysis — one report is available.
Why it matters
Fortinet’s overview helps defenders understand how untrusted content can redirect AI systems with access to sensitive data and workflows, without presenting a newly disclosed exploit or incident.
Fortinet’s glossary explains how direct and indirect prompt injections can cause LLM applications to follow attacker-controlled instructions rather than their intended tasks. The reference describes risks including data exfiltration, unauthorized access, and manipulated outputs, and recommends layered defenses such as input validation and least-privilege access.