This increases security by lessening the risks associated with running a public DNS resolver, which include cache poisoning.

通过减少与运行一个公开DNS解析者相关的风险，包括缓存中毒，增加了安全。

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Another kind of attack on DNS systems is a "cache poisoning" attack, where the malicious hacker relies on flaws in some implementations of DNS to "hijack" domain names.

DNS系统上的另一类攻击是“高速缓存中毒”攻击，恶意的黑客利用某些DNS实现中的漏洞来“劫持”域名。

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