It should be noted that the article isn't complete: while the travel planner and ticket machines were the first to fail, trains were cancelled soon after; it took a few hours before everything restarted.
Based on what the conductors said, I would speculate that the train drivers digital schedule was not operative, so they didn't know where to go next.
I don't find a detailed statistic on the overall delays, but the per-station statistics for Amsterdam Centraal say 5% of trains were cancelled and 17% were delayed by 5 minutes or more (mostly by 10 minutes): https://www.rijdendetreinen.nl/en/train-archive/2025-10-29/a...
https://nltimes.nl/2025/10/29/ns-hit-microsoft-cloud-outage-...
It should be noted that the article isn't complete: while the travel planner and ticket machines were the first to fail, trains were cancelled soon after; it took a few hours before everything restarted.
Based on what the conductors said, I would speculate that the train drivers digital schedule was not operative, so they didn't know where to go next.