Employees often have user access authorisations for various IT systems in their organisations, such as production, test, quality assurance, or project systems. In most cases, these systems are located in different areas of responsibility and often managed by different administrators. In some circumstances, this can mean that identical and unique user IDs are not used on all IT systems and there is no central overview of user access to the individual IT systems. In such scenarios, it is not possible to disable all of an employee's access in one step in the event of an attack or password theft. It is also not possible to block all of an employee's access in one step when they leave the organisation.