The only positively unhackable system is a computer that's turned off, and even that isn't a guarantee because someone might be able to physically walk up to it, turn it on, and hack it.

关闭的计算机才是不可攻击的系统，但是也不能完全保证，因为某人可能会走上前走，打开它，然后攻击它。

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Researchers hope that by showing off how to hack certain systems, the computer industry will take steps to make infrastructure and consumers safer.

研究人员希望通过展示如何入侵某些系统的方式，督促计算机行业采取措施使基础设施和消费者更加的安全。

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Of course I'm assuming that an excessive amount of time is spent on a computer in order to hack into others.

当然我猜想的是那些花费过多的时间目的为了入侵的人。

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But the judges ruled that the extradition was lawful and proportionate to his crime, which U.S.prosecutors have called "the biggest military computer hack of all time."

VOA: standard.2009.07.31

Mr. Hurst on Monday alleged that the tabloid had directed two private investigators to hack his computer.

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In December 2011, HAMMOND conspired to hack into computer systems used by Stratfor, a private firm that provides governments and others with independent geopolitical analysis.

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He writes actual letters, physical objects that can be stolen by someone who does not know how to hack a computer, a novel concept in 2013.

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