员工邮箱反复收到钓鱼邮件怎么处理

邮箱钓鱼处理不能只靠提醒员工"别点"。同一个人反复收到,先把邮件头导出来,看发件域名、退信路径和链接跳转是不是同一批基础设施。网关侧可以临时封域名,但更重要的是查有没有人已经点过链接或输入过密码。处理时我会把样本丢到沙箱或安全平台,确认风险等级后再发内部提醒,提醒里只写该看哪里、该怎么报,不放可点击的原链接。后面再补一次短培训,比群里吓人式通报有效得多。后续还要查邮箱规则和登录记录,很多账号被钓以后会被偷偷加转发规则。只删邮件不够,密码、MFA、异常 session 都要一起处理,不然攻击者可能还在邮箱里等下一封客户邮件。我做这类技术支持时,会把现象、环境、处理动作和结果拆开写,不把所有问题都归成系统不稳定。记录越具体,后面同事接手越快,也能看出哪些问题该培训,哪些该改配置。

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