In my business it is necessary to frequently (once a week or so) send large (50-100 MB) files. I have discovered that attaching to e-mail is not the way.

My computer tech has set up a password protected server with FTP access, but now I hear that Microsoft does not reccommend that for security reasons. There are a plethora of services offering large file transfer for free and they all claim to be secure.

Security is of importance to me as is ease of use and cost (free is good). Does anyone have some advice as to where to look or which service to use.