Without knowing who is behind the activity, Harrison said that the targets - large, popular services rather than high-value ones - were not typical for a blackmailer.

由于不知道谁是此次攻击活动的操作者，Harrison称这次攻击的目标——大型普及型的服务而不是高价值的网站——并不是敲诈者所攻击的典型对象。

youdao

Yes, there are bullies everywhere. And the worst are the ones who take advantage of you without you ever knowing what they've done.

是的，持强欺弱无处不在。而最糟糕的是那些人从你身上获取利益而你却对他们的所作所为一无所知。

youdao

And the worst are the ones who take advantage of you without you ever knowing, what they've done.

最糟糕的是那些人从你身上获取利益，而你却对他们的所作所为一无所知。

youdao

But companies have been allocating their marketing budgets to these media outlets without knowing which ones offer the biggest bang for the buck.

FORBES: Convertro Boosts Online Revenues By 7% to 12%