First thing one worries about? Security.
"Dropbox, the file-sharing service, is hoping to appease information technology departments by introducing a new service.
"Dropbox says it uses the same security measures as banks. Files are encrypted and Dropbox restricts its employees’ access to files. But security is only as good as a user’s password. Dropbox said it is working on two-step authentication, so people would enter a second password sent to their phone, for instance. "