I don't know all that much about Internet security. However, it's not the filder on YOUR system that is shared! When you drop a file into YOUR Dropbox folder, it gets uploaded to the Dropbox SERVER. Anyone that you've shared that folder with isn't accessing YOUR system, they're accessing the duplicated file that is in a folder on the Dropbox SERVER.
I apologize if that's not what you meant ...
~~Bonnie
>There has been something that has me baffled. Increasingly I've seen situations where I can't get a file transferred to a customer because of security (we've got an FTP site, but they're not able to get to it -- local security policy has FTP transfer blocked). For the sake of securty they've pretty much blocked attached files on E-mail too. And then the suggestion comes to use DropBox -- from their IT staff... I don't get it. From what I've been able to determine, it's real easy to set up -- just install software, designate a folder you want to share, then drop the file into the shared folder. It handles transfer via Internet automagically through a tunnelling protocol... Hrm.. a folder on YOUR system that you SHARE on the Internet -- using a tunnelling protocol (which allows it to work around port lockdown) -- how is THAT supposed to be MORE secure?