NIST's new cybersecurity profile is designed to help mitigate risks to systems that use positioning, navigation and timing (PNT) data, including systems that underpin modern finance, transportation, energy and other critical infrastructure. While its scope does not include ground- or space-based PNT source signal generators and providers (such as satellites), the profile still covers a wide swath of technologies.
Source:
Safeguarding Critical Infrastructure: NIST Releases Draft Cybersecurity Guidance, Develops GPS-Free Backup for Timing Systems | NIST
Assessing Cyber Threats To Canadian Infrastructure - Canada.ca
The answer to your question is that there is no agreement on this. It is kind of like Religion, it depends on who you ask, and what their prejudices are. The basic issues are the scope is so broad, there are solutions for subsets of the problem which work, but I am not aware of a single overall solution that integrates them all into a whole. I would recommend at this stage of development of the required technology, a multiple environment solution set coordinated by a CORBA compliant ORB.
Some of the most effective tools to secure computer operating systems and data communications controlling cyber critical infrastructures include:
Firewalls
Antivirus Software.
PKI Services.
Managed Detection and Response Service (MDR)
Penetration Testing.
Staff Training.
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