从全屏退出来后，后置摄像头被激活。

脸书频现网络安全隐患似乎已经算不上是大新闻了，不过最近网友爆料的有关摄像头的bug还是让不少人担心起来。

图 via VCG

Recently, several Facebook users noticed the app is opening the camera while they're scrolling through their feeds. Many of them took to platforms like Twitter and Reddit to report their findings.

最近，多名脸书用户注意到，当他们使用app时，摄像头被启动了。很多人在推特和Reddit等平台上爆料了。

A common description of the problem seems to be that the app opens up the camera mode while users watch videos or are looking at the newsfeed. Some experience the issue when they switch to fullscreen mode, which seems to call the camera view on the screen for a brief moment.

这一问题最常见的情形是，当用户观看视频或查看新闻提要时，该应用程序会打开相机模式。一些人在切换到全屏模式时遇到这个问题，屏幕上会短暂地出现相机视图。

▲ iPhone bug shows Facebook app accessing the camera while scrolling through videos and the newsfeed (via techspot)

最早爆料这个问题的是一个网页设计公司的负责人Joshua Maddux。发布的视频显示，他点开了一个用户的头像，然后在关闭的时候发现后置摄像头启动了。

发现脸书一个安全和隐私的问题。使用App期间它会积极调用摄像头。我在App里发现一个bug，在你浏览时还能看到摄像头也在开着。注意，我的镜头对着地毯。

不少网友跟帖表示他们也遇到同样的问题。