End-to-end encryption protects specific files by encrypting them on the user's device before they’re transmitted to Dropbox servers. This ensures that Dropbox can’t access the private keys or plaintext files. However, it’s important to note that there may be some limitations regarding functionality and usability.   Advanced key management offers an additional layer of security for all files by utilizing a unique team encryption key, which the customer can optionally control. This feature enhances security without compromising Dropbox's core features. It’s designed to be easy to adopt and use, with no limitations in functionality or usability.   End-to-end encryption is well-suited for selectively protecting files, while advanced key management provides enhanced security for all files without sacrificing Dropbox's essential functionalities. The choice between the two options depends on your team’s specific security needs and requirements.   Learn more about how Dropbox keeps your files secure.