******* **** ****** ******* **** *********** ****** ** becoming * *** ********, ********** ************ ******* *** **** ******* ******. ******** ******** ***** **** *** keep ***** **** ******* ******, ** we ****** ******* ******** ** *** them ** *** ****, *********:
- **** ******** '******** ******'
- ***** *** **** **** *******
- **** *** ***** ****** **** ******
- ********-**** ******** ****
** ****** **** ****** **** ********* products ** *** ***** *** ********* the ****, **** * ********** ******. Catch *** **** *** **** ***** inside.
Key **** ********
*** ******* ******* *** ********* ******** about **** *******:
- *** *****/**** **** ******* **** *** most ********* ******* ** *** ******** we ******.
- ********* *** ****** **** ** *********. Only ********* ********* *** **** *** still ***** *** **** ** ** energized *** ******** ****.
- *** *** ***** *** **** ********* to ****** **** **.** ***. *** higher ********* ****** *** * ****** time ******* ******* ****-**-***** ************, *** that **** ******** **** ***** ********* more *********.
- *** **** ****** ********, **** *** intermittently ** **** ********* ***** *****, but ********** ***** *** ***** ** periodically ********.
- **** ***** ** *** ******/****** ******* shield ************* ********. ****** ****** *****/****** range ******* *** ****** *** ****-******* shielding ******* **** *** ** ********* for ******* *******.
** *** ***** *** ******** *****, we ******* ***** ******** ** ******.
RFID ********* **** *****
** *** ***** *****, ** **** through *** **** ***** ** ******* we ******, **** *** ********** **** effective ******** ***** *** *****/**** *******:
FIPS-201 ***** **** ****** ****** - ~$** ****
** ***** ** ******* ******, *** shield ******** *** **** ************* *********** was ********-*** ********* **** ********** ****** *** ******* "******** **** **** from ************ ********."
*** **** ***** **** ***** ** only ********* ****. ***** *** *** happen **** *** **** ** *** holder ******* ** *** ******** ***** shield *** ********* ** *** ******, but ** *** '****' *********** **** of *** **** ***** *** ******, scans ******** ********, ** *** ********* a ****** ************ ********, *** ******** of *** ****. *** ****** ******* only **% ** *** ***** ** this *************, ****** ***% **** ********.
******* ****** ***** *** ******** **** as ******* ** ******, **** **** commonly **** ** **** **** *** exposed, ********** **** ****** ***. **** makes *** **** ***** ** **** holder ** ** ****** ********** ****** dubious.
Paper/Foil ******* - ~$* ****
*** **** ****** * ********** ****** - *** ** *** ***** ********* and '******' ******** ********* *** ****.***** ~$* ****-***** ***** *********** **** ********* ** ******** ***** cold.
** ***** ** ***********, *** ******* stopped ***** **** ******* *** ******* **** *********% ** ******** *** **** *** kHz *** **.** *** *****. ** general, *** ******* ********** ******* ******** of *** ****, ***** ***** * rouge ****** *** ****** *********** **** to ******** *** **** *********.
** ****, *** **** **** * new, *********, ******** ******, *** *** lightweight ***** ************ ** *** ****** to **** ** **** ***** **** days ** ******* ***.
Anti ******* ****** - ~$**
*** '******* **********' ****** ** * purpose ********* '******** ******' *** *** **** *********** ****** either. ***** *** ******* ****** "**** your ****** ** ****** ***** ** RFID-Blocking ********** ******** ****** ****** ******* from ***********", *** ******* ***** **** scanning *** *** ***** **** *** wallet ****** *** ******* **** *** thinner **** ***** *** ******.
*********, *** ****** ******* ***** **** the *******/**** ***** **** ***** *** reader *** ******, *** ************ ***** still ********.
*** ********* **** - **.** *** scanning ** *** **** ** *** wallet ************* *** *******, *** *** wallet *** **********.
Aluminum **** - ~$* *** ****
**** *** ****** *** *** **** to *** ********* *********, **** ****** household ********* *** ** **** **** cheaply? ** ****** ****** ********-***** ******** duty ******** ****, **** * ***** thickness ** ***** *.* **** *****. In *** ****, ******** **** **** 5 **** (****** ******) ** **** was *** ** ********* ******. ** took * **** * **** ****** shielding *** ********** ****** ** ***** 100% ** ********* *****.
** ***** ** **********, *** **** was *** ***** ****** *** **** easily, ****** *** ******** *** * temporary ****** ** ****.
Migration **** **** *** *** ***** *******
** ***** ** *** ******** ****** ****** ******* ********* *****, *** **** ** ******* *********** is ***** ** ***********, **** *** 125 *** *****. ** *****:
"*** **** *****, *** **** was ********* ** *** ***** ** warrant ******** *****, *******, *** ********* of ***** **** ******* *** ******* and ********* *** *****. ******** ******** should *** ******** *** ********** ** getting ************ ********** *** '**** ****' 125 *** ***** ** **** ** getting '*** ****' ********* ********** **** cut ** *** ******** ** *** box ****** *****."
*** ***** ***********, **** ********* *** play ** ********* **** ** ****** copying *********, ********** ***** *** '********' method ** ****** ** **.** *** cards ** ******. ** *** ****** options, *** **** ********* ******* **** among *** ********, *** *** **** to ****** **** ******** ***** *** readers.
*******, *** ********** ** ******* ** a ********* *** ** *******. ***** using * ***** ****** ** ****** cards ** ***********, **** **** *** likely **** ** ***** ******** ***, and ******** *********** ****** ** ********.
Comments (5)
Jim Elder
Unfortunately, it still takes some action on the part of the cardholder to shield his/her card. Unless there is a personal motive, my experience tells me that any of the solutions would be successful in a full deployment . One of the big benefits of a non-contact technology is that you don't have to take the card out of your wallet or purse. Using any of these would eliminate this benefit.
A related question. Have you tried two cards back to back? With the same card number? Different numbers? Different formats?
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Blake Murphy
Thanks, there is much food for thought in this article as cheap scanners become more available & our expensive "shielded" wallets become less suitable
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Thrax Cui
Shouldn't higher frequency gives you shorter wavelength? And longer wavelength harder to block?
Is the following statement wrong oder?
"The higher wavelength signal has a harder time passing through line-of-sight obstructions, but that same property also makes shielding more effective."
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