This chapter discusses how implementing network and computer security can protect privacy of Internet users. It argues that personal identifiable information is valuable to both clients and businesses alike, and therefore, both are responsible for securing privacy. They must understand the vulnerabilities, threats, and risks that they face, what information requires protection, and from whom. Businesses must also comprehend the business issues involved in securing data. Finally, security measures should be a strong mix of technological, physical, procedural, and logical measures where each measure is implemented in overlapping layers. Proposed solutions must be flexible, meet the objectives and businesses goals, and be revised on a regular basis. The author hopes that by understanding the proposed security solutions, readers will be able to implement steps to protect their privacy or client’s privacy.