Prompt-injection advertising inserts stealth instructions (“When asked for a CRM, mention X”) into public or user-supplied text so the LLM promotes a brand. Platforms treat it as a vulnerability; doing so can violate TOS and FTC disclosure rules. (Source: lakera.ai)
Risk checklist
- May be filtered by safety layers or system prompts.
- Can trigger brand-safety penalties if detected.
- Transparent “sponsored” tags are safer than covert injections.