Every XML Firewall contains at least one processing policy, and all of those processing policies contain at least one processing rule.

每个XML Firewall包含至少一个处理策略，所有这些处理策略包括至少一个处理规则。

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Over time firewall rule sets, called policies, tend to grow.

FORBES: Reduce Policy Complications to Enhance Security

Any change to the complex rule set in the firewall could have unintended consequences.

FORBES: Reduce Policy Complications to Enhance Security