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PowerVu is a Conditional Access System developed by Scientific Atlanta. It is widely used by cable operators for source programming and is not in wide use among the consumer market. PowerVu is considered exceptionally secure having not been compromized at all since it was first put into action. The system employs a complex method to keep transmissions secure including authorizing each PowerVu receiver and tracing its history of ownership and usage.
PowerVu is used by Retevision, Bloomberg Television, Discovery Channel and more.