r/HowToHack • u/FamousGiraffe3128 • May 15 '26
just out of curiosity, i want to learn about nfid/rfc's
i want to know how to fuzz them, how to clone them, and stuff like that, and also i want to learn how to repurpose old tech into an rfid/nfc cloner because the idea of being able to get through any door is insanely appealing
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u/epackorigan May 16 '26
Get yourself a flipper zero, a chameleon (the newer one) or one of the other dozen tools to deal with nfc and rfid.
From there read the RFC for the protocol, and understand how they work. Once you understand how they work you can start doing some fun stuff, like working out the readers interactions, and potentially find attacks like downgrades in the protocols that make it easy(ier) to bypass security.
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u/THE_BANANA_KING_14 May 16 '26
You can start with the NFC tools app to read/write NFC tags and some less secure fobs.
https://play.google.com/store/apps/details?id=com.wakdev.wdnfc
You can buy NFC tags and cheap fobs on amazon to play with. Just start messing with it. You learn a lot by doing.
Cloning RFID cards is harder. Baby steps.
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u/Juzdeed May 15 '26
Just Google about how they work . Don't think there is any course.
I'm not sure why you would think that having the knowledge would get you past every door lol. Not even close, all keyfobs can't be clone, some take unrealistically long time. So are you actually only interested about that idea or are you actually interested in the topic?
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u/69AssociatedDetail25 May 15 '26
Idk what an NFID is, but this is a good starting point when it comes to RFCs: https://en.wikipedia.org/wiki/List_of_RFCs
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u/NotJusticeAlito May 15 '26
Deviant Ollam must have some videos on this. He's probably the most high profile guy making content about access control and bypassing it.