(1) A: If you want to build a book e-commerce website, a key issue is to decide whether to host it yourself or not. When choosing www computer hardware, we should have a long-term plan and consider its upgrade ability when necessary. There is also the choice of operating system and application server, which are closely related. On the basis of providing hardware infrastructure, the key to complete the production of e-commerce system software is to ensure the security of e-commerce websites and transactions, which also involves copyright, legislation and public policies, advertising and other issues should also be considered, and so on.

(2) Answer: The security threats to operating an audio-visual e-commerce website mainly come from four aspects: the protection of copyright and intellectual property rights, the protection of clients, the security of communication channels and the security of servers. Generally speaking, websites need to take the following measures: protect intellectual property rights through more advanced methods such as IP interception, packet filtering, proxy server or information shielding; Encrypt sensitive data in transactions to protect the security of communication channels; E-commerce server is protected by access control and authentication, operating system control and firewall.