Cloud firm Egnyte has announced a file-sharing appliance called Storage Connect it hopes will appeal to organisations that don't feel comfortable transferring and storing sensitive files using cloud data centres.The sales pitch is that Storage Connect functions as part of a 'PRISM prevention program', an angle that hooks into worries over who can access files once they leave the firewall and whether data might be exposed by unofficial 'shadow' cloud services such as Dropbox.Egnyte describes the most sensitive files as being 'red data' which the Storage Connect virtual appliance makes it possible to keep within the firewall by brokering access to and organisation's storage area network. Users access files using an encrypted channel to the device (including an Android or Apple mobile) that offers better performance that a conventional VPN, Egnyte said.No sensitive data or metadata was transferred to or through Egnyte's cloud while access to files coul