In hybrid form, a private cloud can include data stored on premise or off, with a private Platform-as-a-Service middleware layer managing application data and enforcing data security.

FORBES: The Data Protection And Security Case For Private Clouds

See my stories on Forbes about NYSE Technologies and big data, data analytics, and providing an open source middleware service.

FORBES: IntercontinentalExchange (ICE) Merger With NYSE Euronext Will Reshape Markets