College Kid Shuts Down High Speed Trains With a Laptop and a Radio

A 23-year-old Taiwanese college student, Lin, allegedly used a laptop and software-defined radio to intercept and imitate high-speed rail control signals.

The interference triggered a stop mechanism, disrupted four trains, and delayed service for nearly an hour.

He was later arrested and could face prison time.

The case raised concerns about Taiwan High Speed Rail security, including outdated cryptographic keys and broader critical-infrastructure protections.