Privacy concerns at Defcon
From Chris Paget’s Blog:
I’m planning to give a pretty spectacular demonstration of cellphone insecurity at Defcon, where I will intercept the cellular phone calls of the audience without any action required on their part. As you can imagine, intercepting cellphone calls is a Very Big Deal so I wanted to announce at least some of the plan to reassure everyone of their privacy.
First and foremost – I’m not just making this stuff up. I know when to get advice from a good lawyer, and in this case I’m taking the advice of the very best there is: the EFF. They’ve been kind enough to offer their help and I’m taking it – this is what we’ve worked out.
1. If you’re in an area where your cellphone calls might be intercepted, there will be prominent warning signs about the demo including the time and date as well as a URL for more info. This will be the only time when unknown handsets will be allowed to connect; at all other times only pre-registered handsets will be granted access. You will be clearly warned that by using your cellphone during the demo you are consenting to the interception, and that you should turn your cellphone off during that time if you do not consent. A recorded message with essentially the same info will also be played whenever a call is made from the demo network.
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