Such overload, or " denial of service" attacks, are irritating.

这种超载，也就是“拒绝服务”的攻击很让人恼火。

That's a reference to denial of service attacks that crippled the Web sites of Ukraine's largest banks and the Foreign and Defense ministries.

这是指对乌克兰最大的几家银行以及外交部和国防部网站的拒绝服务攻击。

The things that we've seen from them — the attacks against the South Korean businesses and media have been much more primitive kind of attacks — DDOS, denial of service attacks.

我们看到他们对韩国企业和媒体的攻击要更简单，是那种阻断服务攻击。