If you RTFA, they were paid by the repair company who was paid by the private train operator to fix the train. In doing so, they reverse engineered the hardware/firmware and found the DRM added by the manufacturer to prevent the repair company from doing the repairs by bricking the train.

Yes yes, how dare they unbrick public transportation infrastructure.

Fuck off.

Depends on your definition of "ethical"

If the train owner allowed it, it's just maintenance that happens to affect software.

Hacking would be if it was not authorized by the owner.

Any maintenance not authorized by the train maker entitles them at most to suspend the Warranty.

@btp@kbin.social

If anything perhaps everyone involved should sue the train manufacturer for bricking the train with their DRM nonsense.

"Dragon Sector" is an OG name for a hacker firm.

"we discovered a ‘workshop-detection’ system built into the train software, which bricked the trains after some conditions were met (two of the trains even used a list of precise GPS coordinates of competitors' workshops)."

That is an anti-trust violation du jure. I wonder what kind of anti-trust laws Poland has.