For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
Steghide - Steghide is a steganography program that is able to hide data in various kinds of image- and...
Google Drive - Access and sync your files anywhere
OpenPuff - OpenPuff is a professional steganography tool: HW seeded random number generator (CSPRNG)
Mega - Secure File Storage and collaboration
SilentEye - SilentEye is a cross-platform application design for an easy use of steganography, in this case hiding messages into pictures and sounds.