The first step is to identify the sources and events that could trigger IT risks, such as external threats, internal vulnerabilities, changes in technology, processes, or regulations, or human errors or frauds. You can use various methods and sources to identify IT risks, such as interviews, surveys, observations, document reviews, industry benchmarks, best practices, standards, frameworks, or historical data. You should also consider the interdependencies and interactions among different IT risks and how they could affect each other.