Breaking "DRM" in Polish trains

Submitted ⁨⁨1⁩ ⁨year⁩ ago⁩ by ⁨roobre@links.roobre.es⁩ to ⁨tech@links.roobre.es⁩

https://media.ccc.de/v/37c3-12142-breaking_drm_in_polish_trains#t=3396