BEService.exe (or BEService_x64.exe) is the usermode service. It communicates with BEDaisy.sys via a device object that the driver exposes. It handles network communication with BattlEye’s backend servers, receives detection results from the driver, and is responsible for ban enforcement (kicking the player from the game server).
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，这一点在币安 binance中也有详细论述
文 | 源媒汇，作者 | 谢春生，编辑 | 苏淮。谷歌对此有专业解读
And the service availability page says: