Security issues became a topic of research with the introduction of networked information systems in the early eighties. However, in the mid-nineties the proliferation of the Internet in the business area exposed security as one of key-factors for successful on-line business. The majority of efforts to provide security were focused on technology. However, it turned out during the last years that human factors play a central role. Therefore, this chapter gives a methodology for proper risk management that is concentrated on human factors management, but it starts with addressing classical, i.e. technology based issues. Afterwards, business dynamics is deployed to enable a quantitative approach for handling security of contemporary information systems. The whole methodology encompasses business intelligence and presents appropriate architecture for human resources management.