In the fall of 2022, around 9,000 numeric domain names such as 0146.se, 0148.se, 0149.se, and so on were registered in the .SE zone. These domains were registered with two registrars, Register.eu and 1API. They had the same kind of SSL certificate, and there were other similarities among them that strongly suggested they were connected. All these domains were registered after September 1, 2022, but not on the same date…