Operators who had experienced denial of service attacks often said the incidents had at least some effect, from minor service interruptions to sustained damage and critical breakdowns.

曾有过拒绝服务攻击经历的运营商常说，事件至少会有一些影响，从轻微的服务中断，到持续的破坏和关键故障。

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Despite the gradually improving ability to handle denial-of-service attacks, DDoS incidents persisted with increasing scale in the second half of the decade.

尽管对抗拒绝服务攻击的能力在逐渐提高，但是DDoS案件在最近五年一直呈上升趋势。

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Seoul has said North Korea is behind a series of cyberattacks in recent years, including malware incidents and "denial-of-service" attacks that inundate websites with requests for information, causing them to crash.

WSJ: Seoul Raises Alert Ahead of Expected Test

Seoul has said North Korea has been behind a series of cyberattacks in recent years, including malware incidents and "denial-of-service" attacks that inundate websites with requests for information, causing them to crash.

WSJ: South Korea Investigates Cyberattack