Prompt Firewall
Definition
Check inputs to language models for risky content.
A prompt firewall is a pre-check layer designed to detect and handle suspicious inputs based on rules or models.
Simply explained
Like an entrance control that checks for certain anomalies but cannot detect everything.
Why it matters in practice
It can reveal attack attempts and limit risky requests.
Example from business
A hypothetical assistant stops an input that requests the output of internal access credentials.
Limits and pitfalls
- The product term does not describe a complete security guarantee; workarounds and false alarms remain possible.
Origin & history
The term transfers the firewall principle to generative AI.
Use in mid-sized companies
- Combine with permission boundaries, logging, and controlled tool calls.
Frequently asked questions
Is a filter alone sufficient?
No, the application needs multiple protective measures.
Sources
Editorially reviewed on: