https://www.sans.org/blog/introduction-to-ics-security/
https://www.sans.org/blog/introduction-to-ics-security-part-2/
https://www.sans.org/blog/introduction-to-ics-security-part-3/
https://www.paconsulting.com/newsroom/expert-opinion/td-world-the-linchpin-of-grid-resiliency-7-october-2021/
https://www.sans.org/blog/consequence-driven-ics-risk-management/
ICS Security Training | SCADA Systems Security Training | SANS ICS410
Industrial Control Systems Library
SANS ICS Control Systems Are a Target v1.3 09.30.21.pdf
A Collection of Resources for Getting Started in ICS/SCADA Cybersecurity