Company
Proton
- Owner
- Proton Foundation
- Devices
- 10
- End-to-end encryption
- All fields end-to-end encrypted: passwords, usernames, web addresses, credit cards, note contents and metadata; 256-bit AES-GCM vaults; only the user can decrypt, Proton cannot
- Encryption
- End-to-end encryption; 256-bit AES-GCM encrypted vaults; OpenPGP with ECC (Curve25519) for vault keys
- Headquarters
- Switzerland
- Family plan
- Pass Family: up to 6 users, includes 6 Pass Plus accounts and an admin panel
- Founded
- 2014
- Jurisdiction
- CH
- Legal entity
- Proton AG
- Logging policy
- No permanent IP logs by default; temporary IP logs kept to combat abuse and fraud; authentication logging off by default; Proton states it has no technical means to access encrypted passwords or notes
- Security audit
- Independently audited by third-party experts (Cure53 audit published July 2023), open source under GPLv3, public bug bounty
- Free storage
- 5
- Money-back period
- 30 days
- Free plan limits
- Unlimited logins, notes, credit cards and devices; 10 hide-my-email aliases; passkeys and password health alerts; no 2FA authenticator, secure sharing, file attachments or dark web monitoring
- Server countries
- 140
- Longest plan (months)
- 24 months
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