They’re more likely to be based in Eastern Europe based on the times of their commits (during working hours in Eastern European Time) and the fact that while most commits used a UTC+8 time zone, some of them used UTC+2 and UTC+3: https://rheaeve.substack.com/p/xz-backdoor-times-damned-times-and
They’re more likely to be based in Eastern Europe based on the times of their commits (during working hours in Eastern European Time) and the fact that while most commits used a UTC+8 time zone, some of them used UTC+2 and UTC+3: https://rheaeve.substack.com/p/xz-backdoor-times-damned-times-and
It is also hard to be certain as they could be a night owl or a early riser.
Yeah - The post goes into a lot of detail, and they did take that into account. It’s worth reading.