A cybersecurity webcast Dec. 3, 2020, raised more questions than two expert responders had time for at the end, and their answers to those additional -questions on industrial control system cybersecurity are available below. The webcast, with one PDH available, is archived for one year. Regis- ter for the webcast with the following link: Cyber- security: What you need to know. Two presenters answered the additional questions below.