Belarusian railway saboteurs severely impeded Russian resupply operations in northern Ukraine. Railway workers, security force defectors, and cyber specialists all worked independently to disrupt rail transportation.
The Cyber Partisans launched the first attack, hacking into the railway’s computer network in the days leading up to the invasion and snarling rail traffic before Russian troops had even crossed the border. Infiltrating the railway network’s computers was relatively easy, said Yuliana Shemetovets, a spokesperson for the group, which is based in New York, because the railway company is still using Windows XP, an outdated version of the software that contains many vulnerabilities.
https://www.washingtonpost.com/world/2022/04/23/ukraine-belarus-railway-saboteurs-russia/