"Cloud computing — outsourcing computational tasks over the Internet — could give home-computer users unprecedented processing power and let small companies lau

"Cloud computing — outsourcing computational tasks over the Internet — could give home-computer users unprecedented processing power and let small companies launch sophisticated Web services without building massive server farms. But it also raises privacy concerns. A bank of cloud servers could be running applications for 1,000 customers at once; unbeknownst to the hosting service, one of those applications might have no purpose other than spying on the other 999."