Between Privacy and Security. The major difference between security and privacy is that breaches of privacy most often are nontechnical and outside what the Web designer can control. Password management, access control, levels of authorization, access logs, and audit trails are the process complements to Web site privacy design. Do not put all your faith in firewalls. Firewalls are no defense against a skilled professional.
Security demands attention, customization, education, and oversight.
It also demands set procedures, monitoring, and a response plan. That is an investment in and a commitment to the customer relationship. Look on the Bright Side. However, in practice, consumers readily trade off privacy for convenience and service. To sum up, forget about designing Web sites.