RFDump is a software created by Lukas Grunwald and Christian Bottger for security auditing RFID tags.
It is periodically updated to support emerging RFID standards, such as e-passport and Mifare encryption, that are currently found on many pay-as-you-go systems.
RFDump is a back-end GPL tool that interoperates directly with any RFID reader to make the contents stored on RFID tags accessible.
The user data of a tag can be displayed and modified using either a hex or an ASCII editor.
The cookie feature demonstrates how simple it is to abuse RFID technology, such as companies using it to spy on consumers.