That feature was introduced in .NET from the beginning to prevent security attacks coming from network locations.

当初之所以在.NET中引入这个特性，是为了阻止从网络上进行的安全攻击。

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The targets of net attacks could be summed up to data resources, computational resources and connection resources.

网络攻击的目标可以归纳为：目标端的数据资源、计算资源及连接资源。

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Besides, athletes' service, receiving, attacks near the net and fish dives to save the ball all are full of poetic charms.

此外，运动员的发球、接发球、网前对攻、飞身鱼跃救球等都充满了诗情画意。

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Examples abound of this type of infection, from Ghost Net, to attacks on the Pentagon, Google, RSA, and the McAfee Night Dragon incident.

FORBES: Beaconing detection heats up

"Distributed denial of service attacks are probably the worst threat we face on the Net, " said Cerf, who estimated that about 15% of the computers on the Internet or more than 150 million machines have been hijacked into botnet armies.

FORBES: Made For Hacking

Once again, Reid had slipped the net, carrying out an estimated 20 further attacks until his eventual arrest in February 2008.

BBC: Blunders kept sex attacker free