Proton Drive

Proton Drive is a secure cloud storage service designed to protect files with end-to-end encryption by default. It enables individuals and organizations to store, sync, and access documents, photos, and other files across devices while maintaining strict privacy and data confidentiality. All encryption and decryption happen on the client side, so Proton cannot access the contents of stored files.

Key features include zero-access encryption for files, folders, and metadata such as file names and directory structures, as well as secure file sharing via encrypted links with optional passwords and expiration dates. Proton Drive offers version history and file recovery, allowing users to restore previous versions or recover deleted items within a defined retention period. The service provides cross-platform access through web, desktop, and mobile apps, with selective sync and offline access options. Data is stored on servers in Switzerland, benefiting from strong Swiss privacy laws and robust physical security standards.