风控系统有规则和模型两种技术路线，规则的优点是简单直观、可解释性强、灵活，所以长期活跃在风控系统之中，但缺点是容易被攻破，一但被黑产猜到里面就会失效，于是在实际的风控系统中，往往再结合上基于模型的风控环节来增加健壮性。但限于篇幅，本文中我们只重点讨论一种基于规则的风控系统架构，当然如果有模型风控的诉求，该架构也完全支持

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