Willison coins the term prompt injection
Named prompt injection — coined the term by structural analogy with SQL injection and characterized it not as an academic trick but as a kind of security vulnerability
Why it matters
Foundational vocabulary of the LLM security field. Every later security framework, including the OWASP LLM Top 10, uses the term
Source — Primary sources first; secondary reports are labelled “Press”
Officialsimonwillison.nethttps://simonwillison.net/2022/Sep/12/prompt-injection/Added in Week 35, 2026 · See that week