If you found this page, you probably just scanned my hand.

Inside my hand is a Dangerous Things NExT RFID + NFC Chip Implant kindly implanted by Pinchy at BSides Newcastle in 2023.

It’s two chips in one, a 125kHz RFID chip (commonly used in older, cheaper, ID bad badges, pet ID tags and hotel room keys) and NTAG216 NFC Chip (commonly used in everything from “tap” payment systems, so door entry systems, to stickers on things, it’s what most people consider “smart cards” to be) and readable not just by smart card readers (including hacker tools like the Flipper Zero, Chameleon & Proxmark) but also modern smart phones.

Both chips are programmable, so I can either use my hand to impersonate an existing smart card, or serve up custom information (the first record on the NFC chip is a link to this page).

I don’t have a practical real world use case for it, but it’s just kinda cool.

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If you came here as part of a CTF, the FLAG is GDPCTF{HandOfDog}