📄 中文摘要
电子邮件是组织沟通的基石，但同时也是网络安全基础设施中的关键漏洞。电子邮件攻击的迅速增加，包括网络钓鱼、恶意软件和欺骗，已将收件箱转变为网络利用的主要渠道。传统防御机制在面对快速演变的多态威胁时越来越无效，而第三方邮件安全提供商的运营模式则引入了一个关键漏洞：对敏感数据的访问需求，造成了集中风险。因此，自托管解决方案成为应对这一挑战的必要选择，能够在保护敏感信息的同时，提供更高效的威胁检测与响应能力。
自托管邮件威胁检测：实时监控、多阶段丰富和法律合规的 LLM 判决
📄 English Summary
Self-Hosted Email Threat Detection: Real-Time Monitoring, Multi-Stage Enrichment, and LLM Verdicts with Legal Compliance
Email serves as a fundamental component of organizational communication but simultaneously represents a critical vulnerability in cybersecurity infrastructure. The rapid rise of email-based attacks, including phishing, malware, and spoofing, has transformed inboxes into primary vectors for cyber exploitation. Traditional defense mechanisms are increasingly ineffective against polymorphic threats that evolve faster than signature-based detection systems can adapt. Additionally, third-party email security providers introduce a critical vulnerability due to their operational model requiring access to sensitive data, leading to centralized risks. Consequently, self-hosted solutions emerge as a necessary response to these challenges, offering enhanced threat detection and response capabilities while safeguarding sensitive information.