Privacy policy
Last updated: April 2026
What PhishGuard does
PhishGuard is a Chrome extension that analyzes Gmail emails to detect phishing attempts. The analysis is triggered manually by the user - never automatically.
Data sent to our server
When you click "Analyze this email", the following data is sent:
- Sender domain - e.g. "paypal.com"
- Email headers - From address and subject
- Body text - plain text content (max 5,000 characters)
- URLs - links found in the email body (max 50)
- Attachment names - file names only, not the files
What we never store
- Email content is never stored on our servers
- URLs and headers are never logged
- Analysis data is processed in memory then deleted
- Only the risk score and signal summary are kept
What we store
- Your account - Google ID, email address, plan
- API keys - hashed (SHA-256), never stored in plain text
- Analysis results - score, level (safe/suspicious/dangerous), signal details, duration
- Usage quota - daily counter per API key (Redis, automatic expiration at midnight UTC)
Local storage (your browser)
- JWT and refresh token - encrypted with AES-256-GCM before storage
- API key - encrypted with AES-256-GCM before storage
- Consent indicator - whether you accepted this policy
- Email context - stored in session storage only (deleted when the browser is closed)
Third-party services
- Google OAuth - authentication only (email scope)
- VirusTotal - URL and attachment fingerprint verification
- WHOIS - domain age verification
- Anthropic (Claude) - NLP content analysis
- Sentry - error tracking (no email content)
Your rights (GDPR)
- Access - your analysis history is viewable via the extension
- Deletion - delete your account and all your data at any time via the extension settings
- Portability - analysis results are accessible via the API
Account deletion is permanent and cascading: your profile, all analysis results, API keys and Redis quota entries are deleted immediately.
Publisher
- MOUTER HADI - Sole proprietor
- SIREN: 902 509 801 (RCS Paris)
- 8 bis rue Abel, 75012 Paris, France
Contact
For any privacy-related questions: privacy@phishguard.dev