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First, let's take a look at the basic process and common problems of overseas express delivery. After users place an order on an overseas shopping website, the goods go through a series of transportation links and are finally delivered to the user. However, during this process, problems such as package loss, damage, and information leakage may occur.

Qt's related security features, such as the SSL/TLS protocol supported by the Qt Network module and the cryptographic functions provided by the Qt Security Framework, provide potential technical support for solving these problems.

The SSL/TLS protocol can encrypt data transmission during express delivery, ensuring the security of users’ personal information and transaction data. For example, sensitive information such as the user’s delivery address and contact information is not easily stolen during transmission.

The cryptography functions provided by Qt Security Framework can encrypt the identification codes and logistics information of express packages, thereby increasing the confidentiality and integrity of the information.

Furthermore, the rapid development of overseas express delivery services has also put forward higher security requirements for the logistics industry. Logistics companies need to continuously improve their technical level and adopt advanced security measures to protect the interests of users.

At the same time, the government should strengthen supervision of the overseas express delivery industry, formulate relevant laws and regulations, regulate market order, and protect the legitimate rights and interests of consumers.

For individual consumers, while enjoying the convenience of overseas express delivery to their door, they should also enhance their own safety awareness, for example, by choosing a reputable express service provider and paying attention to protecting personal information.

In short, the development of overseas express delivery services cannot be separated from the support and guarantee of security technology. Only through the joint efforts of all parties can a safe and convenient overseas express delivery environment be created.