Www.dropbox.com is a cloud storage service that both individuals and companies can use to store their own data online, protecting it from data loss or making it available on multiple devices. Www.dropbox.com works as follows:
Whether you access your Dropbox via browser and upload files or your installed client does it automatically, the connection is secured via SSL and AES 256-bit encryption. So at least the transfer of your data is secured.
If you want to use Dropbox extensively, you can get free storage for your www.dropbox.com with the right tricks.