Upon an employee's resignation, what should be done first if they had access to confidential information?

Revoking access to all systems is the most critical first step upon an employee's resignation, especially if they had access to confidential information. This action is essential to safeguard the organization's sensitive data and prevent any unauthorized access or potential data breaches. As soon as an employee provides notice of their resignation, it's crucial to immediately cut off their access to all systems and data to mitigate risks associated with insider threats or accidental data leaks.

While other options, such as conducting an exit interview, ensuring succession plans are in place, and reviewing the employee's job history, may be important components of the offboarding process, they do not take precedence over securing sensitive information. Addressing access control first ensures that the organization prioritizes its security and confidentiality obligations. After access has been revoked, other processes like succession planning and exit interviews can take place without the risk of the departing employee misusing their privileges.