Prompt Hygiene: What Must Never Enter
Every prompt you type is data leaving your control. Learn to identify the red lines — categories of information that must never be entered into any AI system, regardless of its approval status.
Prompt Red-Line Scanner
Paste or type a prompt below. Click Scan to classify every element by risk level. The scanner highlights personal identifiers, financial data, capability details, and organisational references so you can see exactly what must be removed before submitting to any AI tool.
Scan Results
Key Insight
If you wouldn\'t put it on a Post-it note in the office kitchen, don\'t put it in an AI prompt. Every prompt is potentially stored, logged, and could surface in ways you never intended.
Redaction Practice Tool
Below are realistic sample prompts containing embedded sensitive data. Click one to load it into the scanner, try to identify all red-line items yourself, then click Reveal to see how you did.
Your Challenge
Read the prompt carefully. How many sensitive items can you spot? Enter your count below, then click Reveal.