这创造了一个非常安全的环境，因为应用在没有获许的情况下是不能访问系统的其他部分的。

This creates a very secure environment in which an application cannot access parts of the system for which it is not given permission.

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然而，如果处理不适当或者没有认真考虑，则可能创建一个不安全的系统，或者至少是对信任关系理解不足的系统。

However, if done improperly or without careful consideration, you can create an insecure system, or at least one with poorly understood trust relationships.

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如果有公司能够把一个没有烦恼、简单安全的密码替代系统推向市场，那绝对是财源滚滚的现金奶牛。

Creating a painless, easy, and secure password-replacement system will be a major cash cow for any firm that can effectively bring it to market.

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