They aren't always infallible, though, and a few weeks ago, we saw a vulnerability in several builds of iOS 6 that granted access to the phone module without a passcode.

ENGADGET

The hardware module provides real-time access to parameters like the vehicle sensors, GPS receiver and vehicle speed.

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Later this year NCS will add a Web module to allow parents free access to their child's homework assignments for the week ahead, as well as updates on skipped classes, tardies and whether Johnny got into a fistfight in the parking lot.

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As you can see this is not a place of fantastic design but given that you have access to pictures like the one taken from Apollo 13 just before the side of the command module blew away after an explosion - who needs fantastic design?

BBC: Apollo Lunar Surface Journal