How We’re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees

How We’ re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees

摘要

WhatsApp推出可选功能“诈骗警报”，通过设备端机器学习模型检测可疑消息，不泄露内容。模型权重公开可验证，用户可自主开启或关闭，并查看活动日志。系统采用隐私保护分析，仅收集匿名聚合数据，确保端到端加密下的安全。