Features
End-to-end encryption for emails
Zero-access encryption (Proton cannot read data)
Encrypted calendar (Proton Calendar)
Custom email domains (paid plans)
Email aliases protection (hide-my-email)
Secure file sharing via Proton Drive
Password-protected emails to non-Proton users
Open source code (transparency)
Swiss privacy laws jurisdiction
Anonymous sign-up (no personal info for free)
Proton Sentinel account protection
Easy Switch import from Gmail/Outlook
Proton Bridge (IMAP/SMTP for desktop clients)
Lumo AI assistant (confidential AI, version 2.0)
AI-powered detection of BEC, VEC, and phishing attacks
Conversational analysis to spot impersonation and social engineering
Custom detection rules with YARA-like language (Sublime Script)
Real-time threat detection and automated incident response
Threat hunting interface for proactive investigation
Deep visibility into email attack patterns
Integration with Microsoft 365 and Google Workspace
Low false positive rates through adaptive learning
Behavioral analysis of sender and recipient patterns
Automated remediation (quarantine, alert, etc.)
