Botnet attacks last month on Estonia, during a row with Russia over a Soviet-era war memorial, attracted close attention from NATO, the Pentagon and other government agencies.

• 上个月，就在爱沙尼亚同俄罗斯就苏联时代的战争纪念碑发生争吵期间，对爱沙尼亚的“僵尸”攻击引起了北约、五角大楼以及其他政府机构的密切关注。