PrivacyShield
Detects and masks PII before prompts reach AI chatbots to prevent sensitive data storage and training use
The product is a browser extension that detects and masks personally identifiable information before prompts are sent to AI chatbots such as ChatGPT, Claude, and Gemini, preventing names, credit cards, credentials and other sensitive data from being stored or used for training. It is for professionals who handle confidential data with AI, including IT and legal roles in businesses as well as freelancers, clinicians and developers. It runs 100% locally in the browser with no servers or data collection and is free for core protection, unlike enterprise tools that require IT deployment and monthly fees.
Key features
- Credit card detection with Luhn validation
- Social Security Number detection
- API keys and secrets detection
- Password detection
- Bank account number detection
- Person name detection via NER
- Physical address detection
- Phone number detection US and UK
- Email address detection
- Date of birth detection
- Age mention detection
- Salary and income detection
- Medical condition detection
- Employer name detection
- UK National Insurance Number detection
- Real-time highlighting with color-coded underlines
- Pre-send masking confirmation dialog
- Auto-masked critical PII
- User-controlled soft PII masking
- AES-256-GCM encrypted local mapping
- Auto-expire mapping after 4 hours
- Right-click manual masking
- ChatGPT Claude Gemini support