如果ejb层不安全(请参见下一部分)，则入侵者可以使用伪造的凭证直接调用EJB，使应用程序的安全性无效。

If the EJB layer is not secured (see the next section), intruders can call an EJB directly with forged credentials, rendering the application's security meaningless.

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美国专利法为竞争者使一项专利无效或不具有实施性提供了以下三种独特的机制，而这三种机制并不为中国企业所熟知。

Patent law also provides the following three unique mechanisms, not commonly known by Chinese companies, for competitors to invalidate or make a patent unenforceable. I . Inequitable Conduct.

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