Where Phone data is extremely sensitive and public storage is out of question, a private server seem to be the perfect solution.
MoBackup supply three types of storage systems each one suited for different users:

• Operator Web Server:
  Secured Web Server hosted by Vayosoft or Cellular operator, for the use of mass users.
• Corporate Web Server:
  Private Web Server located behind the company firewall preventing from hostile eyes to watch company's and personal restricted data. Users benefits from all basic services of the application plus access to company shared content on the exchange server.
• Home PC Server:
  PC based application for users who prefer to keep phone data on home PC rather the operator server.