A few weeks ago PC security company McAfee released an update to its anti-virus soft- ware. For some customers, the update mistakenly destroyed a legitimate and crucial file in the Windows operating system. Hundreds of thousands of personal computers, perhaps millions, were rendered unusable. One university lost the use of 8,000 of its 25,000 PCs, and some affected hospitals turned away non-trauma patients from their emergency rooms. This debacle is an example of a structural failing in security that echoes across the entire internet.
几周前，个人电脑安全公司McAfee发布了其杀毒软件的更新，误杀了某些客户Windows操作系统中一个至关重要的合法文件，致使数十万、或许是数百万台个人电脑陷入瘫痪。某大学2.5万台个人电脑中有8000台瘫痪。部分受影响医院的急诊室甚至暂停接治非创伤患者。这一重大事故，是电脑安保的结构性缺陷在整个互联网蔓延的一个例子。
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