From the Document: "Increased geopolitical tensions and threats of aggression may result in cyber and physical attacks against the Homeland and also destructive hybrid attacks by proxies against U.S. targets and interests abroad. Knowing how you, your organization, and your personnel may be exposed or targeted during increased tensions can help you better prepare. In many cases, implementing the Cybersecurity and Infrastructure Security Agency (CISA) Cyber Essentials can dramatically improve your defenses. Should an incident occur, engage with partners, like CISA, and work with cyber or physical first responders to gain technical assistance. Review your organization from an outside perspective and ask the tough questions--are you attractive to Iran and its proxies because of your business model, who your customers and competitors are, or what you stand for?"
Cybersecurity and Infrastructure Security Agency: https://www.cisa.gov/