Kim Dotcom Can Encrypt Your Files. Why Can’t Google?

You can’t easily encrypt documents using the net’s biggest file sharing services, including those from Google, Microsoft, and Dropbox.

For the truly paranoid, the best solutions is to use open-source software to encrypt the file on your computer before it’s uploaded to Google or Microsoft’s networks. That way, if someone — the NSA perhaps — compromises Google’s network, it still can’t read your stuff.

Imagine Google Drive with no search capabilities, or Dropbox with no preview. None of those features would work with encrypted files, because they’d be unreadable by Google and Dropbox’s server software.