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Do you know they really work?
Studying roughly about one year in RFID I have not seen all, but I haven't seen a reader which copes with reading more than 1 card at one go, or even properly working when other cards uncarefully put too close to the experiment premise.
Skimming/theft could IMHO only happen, and if, if you have one card/tag of a type LF or HF at a time. In a wallet we have many different banks, different type HF/LF, yes, you have only one metro card, but also you do have other HF card type.... Or am I mistaken?
Does the industry pull wool over our eyes with their sense of security again?...
Last edited by ntk (2016-05-12 08:26:03)
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Have done a little experiment. .
I lay together 2 tags, two clones of AWID just because I have, on the antenna and run a lf search
- first run with both AWID tags on it
- second, third run with only one 26bit
- fourth run with only the AWID 50bit
Result:
- PM3 can not detect any cards when they lay mixed on the antenna
- second and third clearly detect the AWID 26bit
- in fourt experiment PM3 clearly identify the AWID 50bit.
Conclusion:
How can a skimmer take your RFID data from bank cards, ID card when the cards/tags are mixed in your wallet, If PM3 can't not detect the lot? not from 3 foots away, but directly on the antenna.
I still can be wrong, would like to have your input.
( i have micro drilled all my bank cards to destroyed RFID, and have to say sorry each time a bank clerk has to key in the bank card by hand... LOL I should not have to... I mean apology yes, but drilling no)
proxmark3> lf se
Reading 30000 bytes from device memory
Data fetched
Samples @ 8 bits/smpl, decimation 1:1
NOTE: some demods output possible binary
if it finds something that looks like a tag
False Positives ARE possible
Checking for known tags:
No Known Tags Found!
proxmark3>
proxmark3> lf se
Reading 30000 bytes from device memory
Data fetched
Samples @ 8 bits/smpl, decimation 1:1
NOTE: some demods output possible binary
if it finds something that looks like a tag
False Positives ARE possible
Checking for known tags:
AWID Found - BitLength: 26, FC: 224, Card: 1337 - Wiegand: 3c00a73, Raw: 011dbe11148e281111111111
Valid AWID ID Found!
proxmark3>
proxmark3> lf se
Reading 30000 bytes from device memory
Data fetched
Samples @ 8 bits/smpl, decimation 1:1
NOTE: some demods output possible binary
if it finds something that looks like a tag
False Positives ARE possible
Checking for known tags:
AWID Found - BitLength: 26, FC: 224, Card: 1337 - Wiegand: 3c00a73, Raw: 011dbe11148e281111111111
Valid AWID ID Found!
proxmark3>
proxmark3> lf se
Reading 30000 bytes from device memory
Data fetched
Samples @ 8 bits/smpl, decimation 1:1
NOTE: some demods output possible binary
if it finds something that looks like a tag
False Positives ARE possible
Checking for known tags:
AWID Found - BitLength: 50 -unknown BitLength- (555) - Wiegand: 2013600000456, Raw: 0128b1122b811111121b7111
Valid AWID ID Found!
proxmark3> this trader will never love me ... Do I have to try the same with HF ... or mix HF with LF ..., what do you think?
Last edited by ntk (2016-05-16 17:53:46)
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