Intentional and accidental errors and malicious acts by employees and insiders cause a considerable amount of the damages and losses experienced in the telecommunications industry. The range of employees spans from good intentioned employees that make accidental errors to disgruntled employees seeking revenge. Insiders, such as contractors who have administrative roles with respect to network service, that have a high level of knowledge and privileges pose a threat. The full range of employees and insiders increases the potential for acts that can severely impact the security of the PSN.