美国国家安全局需要网络安全专家来强化更新网络防卫，进行“渗透测试”来盘查安全漏洞，密切注意任何网络攻击的迹象。

The NSA needs cyber security experts to harden networks, defend them with updates, do "penetration testing" to find security holes and watch for any signs of cyber attacks.

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很久前就有报道称，谷歌帮助美国国家安全局保障网络安全，甚至还向情报机构出售设备。

Long ago, a report says Google help the U. S. national security agency security network security, even to the intelligence agencies sell equipment.

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