Network access control is to ensure that the cyber source is not illegal, is the main strategy of network security and protection.

入网访问控制是保证网络资源不被非法使用， 是网络安全防范和保护的主要策略。

youdao

Russia is at the centre of concern in Brussels about cyber security, but the commission declined to comment on the suspected source of attacks.

俄罗斯处于欧盟对网络安全担忧的中心，但欧盟委员会拒绝就可疑的网络攻击来源发表评论。

youdao

Investigators say they are closing in on the source of the cyber attacks that hit a number of US companies, including Google, according to reports.

据报道称，调查人员已查出袭击美国公司(包括谷歌)黑客来源。

youdao

In addition to telecoms, software and cyber security investing, the source, who spoke on the condition of anonymity, said Swarth engages in mezzanine lending, capital markets and algorithmic trading.

FORBES: Secretive Israeli Billionaire Invested In Tech Before It Was Cool

Scam emails and infected websites still represent a major source of income for cyber criminals.

CNN: Why cyber attacks threaten our freedom

Thanks to a hacker group in India, InfosecIsland has source material that demonstrates wide spread cyber espionage on the part of the Indian Government which the hackers may publish.

FORBES: First documented case of cyber espionage?