Google新增自拍视频登录选项
TechCrunch
07-24 00:08
Ai Focus
Google上线自拍视频登录功能,借助活体检测应对深度伪造风险,也再度引发对生物识别数据隐私的关注。
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Google开始为账户登录加入自拍视频验证选项。新功能主要面向无法使用常用设备、或在账户找回时需要额外身份确认的用户。随着 AI 生成视频越来越逼真,科技公司正把“确认镜头前是真人”变成登录体系的一部分。

用于找回账户和异常登录

用户在设置时,需要面对设备摄像头,按提示完成点头、左右转头等动作,以便系统从多个角度记录面部信息。之后如果登录遇到问题,用户可以再次录制自拍视频,Google会将新视频与此前保存的自拍视频进行比对,确认是否为本人。

Google表示,这项方式并不是用来完全替代现有登录手段,而是为用户增加一种备用验证路径,尤其适用于被锁定账户、无法使用原有手机或电脑的情况。

重点识别真人而非伪造视频

这项功能的关键,不只是识别面部是否匹配,更在于判断摄像头前是否是真人。Google称,系统会要求用户完成简单动作,以验证当前画面是否为实时拍摄,同时结合既有安全机制识别可疑登录行为。

公司在博客中表示,系统采用多层安全措施,防止他人利用假照片、伪造视频或深度伪造内容冒充账户持有人。随着深度伪造工具扩散,活体检测正逐渐成为登录、支付和敏感数据访问场景中的常见要求。

隐私与生物识别数据再受关注

不过,这类功能也再次引发对隐私和生物识别数据收集的讨论。随着越来越多公司围绕面部和语音数据开发产品,监管部门近年也在持续加强审视。

Google称,自拍视频会以加密方式安全存储,即使在未使用时也处于受保护状态。用户也可以随时在自己的 Google 账户中删除这些视频。

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