| The most dangerous aspect of this in my opinion is the use of RFID chips in passports and other documents, since these chips can be read without your knowledge at any time by anyone within range with a suitable RFID reader, even when your documents are stored out of sight in your pocket or luggage. In principle, it should be possible to store your passport or other RFID equipped documents inside a special envelope or case designed to act like a Faraday cage, blocking any radio frequency signals traveling to or from the RFID chip. I've heard some discussion that envelopes of this type might be provided with the new RFID equipped passports, but have not checked into this, since I still have a valid old passport with no RFID chip. Have any of you had any experience with special passport envelopes or other packaging designed to prevent surreptitious detection and reading of RFID chips? The closest experience I've had with a similar issue was during the late 1990s with a credit card sized access card that was provided to me by my employer to access the building where I worked. The access card apparently contained an RFID chip or some similar wireless technology, since it did not have to be inserted into a reader but could activate the automatic door lock simply by holding the access card near the reader. Normally, I carried this card in my wallet and used it for after hours access to my office. The problem, however, was that this access card also would trigger the anti-theft alarm at a local Target store whenever I walked through the scanner at their door. The Target security guard didn't suspect me of shoplifting, since the alarm went off immediately whenever I entered the store, but it was a nuisance for both of us, since we'd have to waste time verifying that my access card was the cause every time it triggered the alarm. One night the security guard gave me a special card designed to eliminate this problem. It was a card about the size of a credit card or business card and it appeared to be made of thick paper, similar to a business card. I suspect, however, that this paper contained some kind of electrically conductive material designed to shield against whatever electromagnetic signals were used by their reader. All I had to do was to place this card next to my access card in my wallet, and as long as I carried the 2 cards next to each other, there were no more false alarms. Rod -----Original Message----- |
- [Texascavers] For those of you who are crossing the border..... Louise Power
- Re: [Texascavers] For those of you who are crossing the... Lyndon Tiu
- Re: [Texascavers] For those of you who are crossing... Katy Roodenko
- Re: [Texascavers] For those of you who are crossing the... Rod Goke
