Safety And Security

Hacking LED Wristbands: A ‘Lightning’ Recap of RF Security Basics

Trend Micro

We’re always eager for new research and learning opportunities, but this time, serendipitously, the opportunity found us. At the closing party of the Hack In The Box Amsterdam conference — where we presented our industrial radio research and ran a CTS contest — we were given LED wristbands to wear. They’re flashing wristbands meant to enhance the experience of an event, party, or show. At the beginning, we were not interested in the security impact; we just wanted to learn. Later on, however, we discovered that the RF link was used to transport an industrial protocol: DMX512 (Digital MultipleX 512), the same protocol used to pilot large light exhibitions.

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