[Kwpolska]

https://hackaday.com/2023/08/29/polish-railways-fall-victim-...

tl;dr: Trains can be stopped by a transmitting a simple, documented tone sequence over analog radio.

[eqvinox]

Ah, good, not the same thing then.

Honestly, DB are perfectly capable of clusterf*cking their GSM-R without help from Russia.