In the other context, you know in a Window and a Windows machine, you close it with the X on the top right hand corner, where do you close it in the Mac?

还有一个就是，在Windows操作系统下,当你要关闭某个东西时，需要点击,右上角的“X“,那在Mac操作系统下呢？

哈佛公开课 - 计算机科学课程节选

On Tuesday the French firm Vupen, whose researchers develop software hacking techniques and sell them to government agency customers, announced that it had already developed an exploit that could take over a Window 8 machine running Internet Explorer 10, in spite of the many significant security upgrades Microsoft built into the latest version of its operating system.

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The ransomware version found by the BKA uses a pop-up window that says the machine has been locked down due to "unauthorised network activity".

BBC: Ransomware page

What CITOs have not yet understood is that machine data can be a powerful window on customer behavior.

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