Glossary/AI in Marketing/Prompt Injection
AI in Marketing
Prompt Injection
An attack where hidden or malicious text tricks an AI model or agent into ignoring its instructions or leaking data.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
Prompt injection is an attack in which hidden or malicious text tricks an AI model or agent into ignoring its instructions, taking unintended actions, or leaking data. The text may be planted in a web page, email, or document the AI reads. It is a key security concern for brands deploying AI agents with tool access.