We have for quite a while enabled public/private key AES 256 bit file encryption for files in which the private key is not stored on our servers. Many providers now support their own encryption and what we offer is over and above that (and in many cases our encryption is used as an additional security as it is truly private whereas in most cases the vendor stores the public and private key).
We believe it makes sense for us to support vendor Cloud encryption mechanisms were they add value and are possible. To this end we now support the Amazon S3 Cloud encryption and we’ve made it pretty easy to turn the encryption on, straight from the settings of the S3 provider (accessible from the Web DashBoard):
Once you are in the settings page of the S3 provider you simply turn it on: