The official source for the latest firmware (e.g., version 13.02.b) and USB drivers is the IDEMIA Biometric Devices Portal .

Zara pulled out a modified Raspberry Pi Pico with a custom voltage glitching shield. She attached it to the module’s programming header. She ran a script she had written on the train. The driver—now version 4.3.0, patched again to close the PMU hole—logged her attempt. FAIL. FAIL. FAIL.

“Of course it has a signature. We always sign drivers.”