As a security professional, IT service management can be your best friend. Service tickets indicate a regular, defined process that your organizations IT team follows. As security officer, you need to work with your IT team to make sure they understand the security pitfalls of deviating from the intended purpose of the service tickets. A single termination service ticket needs to be routed through dozens of steps: removing access to central directory, email, CRM, finance, accounting and many other systems. This is a problem because it circumvents the business-as-usual process.”]
Source: https://www.csoonline.com/article/3289269/it-service-management-security-s-best-friend.html