Part III: Slot Machine Cheating · Electronic & Digital Cheating Methods

SCAM #13: RFID Signal Jamming & Interception

How it works

Attackers use RF jamming devices to disrupt communications between RFID-enabled chips and casino readers. This can be used to: (1) prevent chip authentication systems from working, allowing counterfeit chips to pass undetected during system outages, (2) intercept (skim) RFID communications to gather data for later cloning, (3) create denial-of-service conditions that force cashiers to bypass electronic verification. Skimming attacks involve placing a concealed RFID reader near where chips are handled (at gaming tables, in chip trays, near cage windows) to capture the RFID signatures of passing chips. The captured data can be used to create cloned chips or to build a database of valid chip IDs for future exploitation.

Where it appears

RFID-enabled chip systems at gaming tables, cashier cages, chip redemption kiosks, and automated chip sorting equipment

On the record

RFID skimming has been a known threat since the mid-2000s when casinos began widespread adoption of RFID-enabled chips. Security researchers have repeatedly demonstrated the vulnerability of unencrypted or poorly encrypted RFID systems to cloning attacks. The tools for RFID exploitation have become increasingly affordable and accessible.

Published as a detection reference for surveillance, compliance and gaming-operations professionals. Thresholds and tuning are set by the property. Nothing here is instruction — the method is described so it can be recognised.