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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