Passive attacks: release of message contents and traffic analysis.

被动攻击：消息内容和流量分析释放。

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Although compared with the previous, improved their safety, but when faced with security attacks (passive attacks and active attacks), the whole network system security still needs to be improved.

虽然与之前相比，其安全性有所提高，但当面临安全攻击(被动攻击和主动攻击)时，整个网络系统的安全性仍然亟待提高。

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Availability is assured at the operating system level, allowing for transparent mitigation of active and passive network denial-of-service attacks.

它在操作系统级确保可用性，可以透明地缓解主动和被动网络拒绝服务攻击。

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There are plenty of different abilities to make monster formations interesting as well, as creatures can sport everything from AOE burst attacks to passive healing auras.

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