Which task is necessary when an employee is terminated and their account needs to be modified?

When an employee is terminated, it is crucial to disable their account to prevent unauthorized access to the organization's systems and data. Disabling the account effectively locks the user out, ensuring that they can no longer log in or access any sensitive information. This immediate action helps protect the integrity of company resources and maintains security protocols.

While resetting the password, renaming the account, or removing the user from groups might be relevant steps in managing user accounts, they do not address the critical need to halt access promptly. Disabling the account is a best practice to ensure that a former employee cannot use their credentials to enter the system, safeguarding against potential data breaches or insider threats.