The employee offboarding policy and process is usually handled by human resources and the employees bosses. IT and security teams should begin the process of deleting the out-going employee from network access. Continuing to have data belonging to former employees mixed with current employees adds to the risks and costs if there is a data breach. A single incident caused by an insider costs a company $750,000 in total including investigation, response and mediation, according to the Ponemon Institute. The more that is known about the employee’s digital footprint, it will be easier to set up specific times to delete access or have devices returned.”]
Source: https://securityintelligence.com/articles/offboarding-checklist-safely-closing-doors/