End-to-end encryption ensures that no one, not even us, can access your files. Files, file names, and folder names and more, are all fully encrypted at rest and in transit to your secure cloud.
Proton is based in Switzerland, which means your files are protected by some of the strictest privacy laws in the world. Proton Drive is a neutral and stable digital vault for your files.
Proton Drive is open source, so anyone can verify that our encrypted cloud storage works as described. Proton Drive is also routinely audited for privacy and security by independent third-party experts.
All Sync plans include strong encryption which helps protect your data from unauthorized access in the cloud.
Sync doesn’t collect, sell or share your personal data or app usage information to advertisers or third-parties, and we do not claim ownership of your data.
Sync is safe to use, no matter where your business operates, with USA, EU / UK GDPR, and Canadian compliance built-in, including data residency.
If you are interested in hosting your own file storage, you can consider Nextcloud (open source)
Nextcloud Files is a cloud storage and file sharing software that provides easy access to sharing and collaboration from anywhere, anytime. All that without any data leaks to third parties and with full control over the data.