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BoobooSnafu then there's your smart phone, if a would be hacker/stalker got close enough to blue jack it, they could trace your location real time via built-in gps, read your text messages, listen in on phone conversations, access application data, stored passwords, credit card numbers, etc. and even possibly remote access the microphone and camera when you're unaware of it (something that the government can already do, and have done in some cases)