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Frequently asked questionsWhat is Amazon Sidewalk? Amazon Sidewalk is a shared network that helps devices work better. Operated by Amazon at no charge to customers, Sidewalk can help simplify new device setup, extend the low-bandwidth working range of devices, and help devices stay online even if they are outside the range of their home wifi. In the future, Sidewalk will support a range of experiences from using Sidewalk-enabled devices to help find pets or valuables, to smart security and lighting, to diagnostics for appliances and tools. "Amazon Sidewalk is a shared network, coming later this year, that helps devices like...

WASHINGTON (AP) — The head of the Senate Intelligence Committee says the CIA improperly searched a stand-alone computer network established for Congress as part of its investigation into allegations of CIA abuse in a Bush-era detention and interrogation program.

The Slammer worm penetrated a private computer network at Ohio's Davis-Besse nuclear power plant in January and disabled a safety monitoring system for nearly five hours, despite a belief by plant personnel that the network was protected by a firewall, SecurityFocus has learned. The breach did not post a safety hazard. The troubled plant had been offline since February, 2002, when workers discovered a 6-by-5-inch hole in the plant's reactor head. Moreover, the monitoring system, called a Safety Parameter Display System, had a redundant analog backup that was unaffected by the worm. But at least one expert says the case...