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#1 2018-06-12 20:25:05

Registered: 2018-06-12
Posts: 2

Hi there

Hey, I'm a property manager in charge of 2 apartment buildings that use a very obscure key card system. I also have a little technical background, (certainly nothing like the other smart people on here) but I've written a little PHP code, can edit websites a bit, etc.

The manufacturer of our building's fob system charges absolutely outrageous prices for replacement fobs, so I've been experimenting with a cheap $10 USB reader from amazon, trying to decode the key fobs, and figure out how I can buy more at a reasonable price.

During my googling I found Marshmallow's excellent explanation of the ZK code: (

Don't have a proxmark yet.


#2 2018-06-13 11:09:39

Registered: 2013-04-25
Posts: 4,879

Re: Hi there

Welcome and I suggest you read as an introduction.




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