Secure Cloud Storage

While doing online research to find a suitable cloud storage provider to host (backup) and sync all my files and folders between multiple devices, I stumbled across Copy.com who started their services at the beginning of this year. Currently they offer 15GB free cloud storage that is only matched by Google Drive. Apart from Google, services and providers like SkyDrive, Dropbox, Box and a seemingly endless number of smaller ones that I do not care to list here are vying for the attention of millions of potential customers who want to store gigabytes of private as well as professional data securely, transparently and quickly while not paying a fortune for continuously growing storage demands. Copy is a service by security, networking and storage specialist Barracuda Networks and while that may be reason enough to trust them with your valuable data, it may not be the only factor let alone most significant argument to sign up with them immediately. I am using Copy for over a week now and I am very satisfied with their reliable services, user friendly web interface (browser) and native client for Windows OS's which uses an acceptable amount of memory (less than 100MB) and a neglectable amount of CPU resources. Upload speed is steadily between 300-400kB/s while download speed seems only be limited by restrictions of your physical internet connection (5MB/s as of now). Copy has no file size limits, no bandwidth limits (amount of data you can sync between devices) and no other hidden restrictions of any kind and works with all major platforms (mobile: iOS, Android, desktop: Windows, Mac OS, Linux). Files and folders are encrypted during transfer (https) and stored on Barracuda's servers using AES 256 encryption. You can share single files and entire folders between multiple or single users and computers and are able to add locations (references) on your hard disk outside of the client's share to be synchronized automatically. The most alluring argument to choose Copy is their referral program that allows you to easily rack up storage space for free in significant steps of 5GB per referral. Simply sign in using this link and you will be granted with an initial 20GB of cloud storage after downloading the client and logging in with your credentials for the first time. Afterwards you will be granted with your own referrer which allows you to invite users who will add to your account with 5GB's each.