Wow thats interesting, I wonder how they caught it, or if they even did. It might have just been pure luck, if someone dropped the coin and a transmitter came flying out

the feds were very tight lipped about it..they didn't disclose how it was discovered.  I agree, there is probably easier ways to track someone, so it will be interesting to see why this method was chosen.

Depending on the site you are not going to be very successful with cell phones.  The higher priority the site the more likely they have policies against cell phones.  And we are talking about an employer who will follow their disciplinary actions.  Plus, most employees at these sites want to be safe and adhere to policy because it is important to them.

Of course, there is always the trust but verify.  So, I am sure that some sites have wireless monitoring at entry point to identify cell phones that are turned on.  As these are 2.4 Ghz, I doubt that they detected the RFID.  It could have been any one of the methods mentioned here or possibly a counterintelligence sweep using detection equipment.

As much as we like to poke fun at the system, there are plenty of people in it who are very smart, and even more who do not f*** around.

Go forth and do good things,
Cutaway