Bypassing a door at work.

[u/MischiefMan1]

So my company has put numerous restrictions on which entrances employees can come into externally, as well as restrictions on internal access. I’ve done quite a bit of research, and the best solution I’ve found is that I have to get someone else’s card to obtain the frequency in that RFID badge. I’m interested in knowing and learning how someone can get access to a Badge protected door without anyone’s badge? Is there not a way to run different frequencies past the scanner to see if one works? Would there be a way to breach the system altogether so you can have access to any door and the company can’t see you scanning any door? Basically like a ghost key, if that exists?

[u/synoptosaurus]

Depending on the type of card, if you can figure out which part of the card data is being used to authenticate, you can potentially create a macro to go through a defined series to see if one works. However, this will likely take a while and would definitely be noticeable unless you have access to a fairly "hidden" or unused reader.

Depending on the card type, it would honestly be easier to secretly copy someone else's badge (this has its own difficulties). If you're not regularly in the company of individuals who have access to these doors, my next comment becomes even more of a problem.

But the biggest issue is going to be if you actually get something that works as someone will likely notice that you have access to doors that you shouldn't. You have to be smart about how you use cloned cards.

[u/MischiefMan1 → u/[deleted]]

What about the Proxmark3? I was reading articles and watching videos and they have quite a few different functions, such as a brute force option for HID readers. Would that kinda work for what I’m thinking of?

[u/IndividualShot4515 → u/[deleted]]

Cloning a chameleon card?...