Here’s a field-programmable RFID ... reader and he managed to crack the code. From there he built this tag spoofer with a keypad on which you enter the number from the back of any 125 kHz ...
The latest update is all about RFID and NFC, and how the Flipper Zero can interact with a variety of contactless protocols. Popular 125 kHz protocols: EM-Marin, HID Prox II, and Indala Contactless ...