Cloud storage privacy ratings
Cloud storage with client-side encryption.
16 encrypted cloud storage are rated against 9 public criteria, and 16 have enough evidence for a letter grade. Of the 16 with a known jurisdiction, 7 are based in a Five Eyes country, and 9 in the wider Fourteen Eyes.
Criteria for this category · Suggest an addition · Markdown
| Name | Grade | Score | Data | Jurisdiction | Open source | No trackers or telemetry | No ads or data sales | Independent audit | Transparency report | Tells users about requests | TLS configuration | Security headers | Modern web standards |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Apple's cloud storage for files across Apple devices, Windows and the web. Files are end-to-end encrypted only with the optional Advanced Data Protection setting, which is off by default. |
Grade B | 75 | 100% | United States Five Eyes | No | Yes | Yes | Partial | Yes | Yes | Yes | Yes | Not tested yet |
Peer-to-peer, end-to-end encrypted file storage and sharing platform with fine-grained access control. Use the hosted peergos.net service or self-host the open source server. |
Grade B | 75 | 100% | United Kingdom Five Eyes | Yes | Yes | Yes | Yes | No | No | Yes | No | Not tested yet |
End-to-end encrypted cloud storage from Swiss company Proton, with open-source apps for web, desktop and mobile. |
Grade B | 75 | 100% | Switzerland Outside Eyes | Partial | Partial | Yes | Partial | Yes | Yes | Yes | Yes | Not tested yet |
End-to-end encrypted cloud storage from Germany, with open source web, desktop, mobile and CLI clients. Offers a free tier and paid plans. |
Grade C | 63 | 100% | Germany Fourteen Eyes | Partial | Yes | Yes | No | Partial | No | Yes | Partial | Not tested yet |
Cloud storage and file sync service with desktop, mobile and web apps. Files are encrypted at rest with keys Dropbox holds, not end-to-end. |
Grade D | 53 | 100% | United States Five Eyes | No | No | Yes | Partial | Yes | Yes | Yes | Partial | Not tested yet |
Cloud storage from Slovenia with web, desktop, mobile, WebDAV and rclone access. Offers optional open source client-side encryption through Koofr Vault and can connect other cloud accounts. |
Grade D | 47 | 100% | Slovenia Outside Eyes | Partial | Yes | Yes | No | No | No | Partial | No | Not tested yet |
Cloud storage and file sharing from Google, integrated with Docs, Sheets and other Google services. Files are encrypted at rest with keys Google holds, not end-to-end. |
Grade D | 44 | 100% | United States Five Eyes | No | No | Yes | Partial | Yes | Yes | Partial | No | Not tested yet |
Cloud storage from Microsoft, built into Windows and Microsoft 365, with desktop, mobile and web apps. Files are encrypted at rest with keys Microsoft holds, not end-to-end. |
Grade D | 44 | 100% | United States Five Eyes | No | No | Yes | No | Yes | Yes | Yes | No | Not tested yet |
End-to-end encrypted cloud storage, file sync and sharing service based in Switzerland, with desktop, mobile and web apps aimed mainly at businesses. |
Grade D | 44 | 100% | Switzerland Outside Eyes | No | No | Yes | Partial | Partial | No | Yes | Yes | Not tested yet |
Cloud storage from Swiss company Infomaniak, hosted in its own data centers in Switzerland, with open-source desktop and mobile apps. |
Grade D | 41 | 100% | Switzerland Outside Eyes | Partial | No | Yes | Partial | No | No | Yes | No | Not tested yet |
End-to-end encrypted cloud storage from Spain, with open source web, desktop and mobile clients. Offers a free tier and paid plans. |
Grade D | 41 | 100% | Spain Fourteen Eyes | Partial | No | Yes | Partial | No | No | Yes | No | Not tested yet |
End-to-end encrypted cloud storage and file sharing service with desktop, mobile and web apps and source-available clients. |
Grade F | 38 | 100% | Hungary Outside Eyes | Partial | No | No | No | Yes | No | Yes | Partial | Not tested yet |
End-to-end encrypted cloud storage and file sharing from Canada, with desktop, mobile and web apps. |
Grade F | 38 | 100% | Canada Five Eyes | No | No | Yes | No | Partial | Yes | Yes | No | Not tested yet |
Cloud content management and file sharing service for businesses and individuals, with desktop, mobile and web apps. Files are encrypted at rest with keys Box holds, not end-to-end. |
Grade F | 34 | 100% | United States Five Eyes | No | No | Yes | Partial | No | No | Yes | Partial | Not tested yet |
Cloud storage from Switzerland with desktop, mobile and web apps. Client-side encryption covers only a separate encrypted folder that needs the paid pCloud Encryption add-on. |
Grade F | 25 | 100% | Switzerland Outside Eyes | No | No | Yes | No | No | No | Yes | No | Not tested yet |
Cloud storage service with desktop, mobile and web apps, a free tier, and optional client-side encryption of a private folder on paid plans. |
Grade F | 19 | 100% | Gibraltar Outside Eyes | No | No | Yes | No | No | No | Partial | No | Not tested yet |
Questions
What is the most private option among encrypted cloud storage?
No pick has been made yet. The table above is sorted by score, based on public evidence.
How are encrypted cloud storage rated?
Each entry answers 9 questions: open source, no trackers or telemetry, no ads or data sales, independent audit, transparency report, tells users about requests, TLS configuration, security headers and modern web standards. Answers need links to evidence. See the full criteria.
Does jurisdiction matter?
Jurisdiction decides which laws can compel a provider to hand over data. Each entry shows its country and whether it is in the Five, Nine or Fourteen Eyes. The data a provider can hand over depends mostly on what it stores and who holds the keys. Read about jurisdictions and the CLOUD Act.