攻击者不能访问一个请求中所有的包，也就不能破译发送的消息。
The attacker cannot access all the packets of a request and cannot decipher what message was sent.
在第一个场景中，我们描述了如何在每次接收包时将消息发送到后端应用程序，以便相应地更新订单状态。
In the first scenario, we had described how each time a package is received, a message is sent to a backend application so that the status of the order is updated accordingly.
发送者主要将发送一个约束传递包的数量的文本消息。
Basically, the sender will send a text message containing the number of the package that was delivered.
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