Multiple levels of potential security risk affect all the elements of an e-commerce site. Truly complete security protects three areas: (1) internal network and application services, (2) perimeter network access and application services, and (3) external network and services. To minimize security risks in these areas as well as to raise overall confidence in the e-commerce service, businesses must address problems with practical solutions involving privacy and security. Establishing an e-commerce trust infrastructure encompasses confidentiality, data integrity, non-repudiation and authentication. Striking the right balance between functionality and accessibility in e-commerce demands technical security measures. It also requires management vigilance with non-technical measures such as routine assessments of vulnerabilities, policies, education and a focus on making processes and policies easy to understand and simple to implement and monitor compliance.