Zero trust (ZT) offers a modern, adaptive approach to cybersecurity by eliminating implicit trust and continuously validating access based on identity, context, and risk. ZT principles assume a breach has already occurred and are designed to limit threat actor movement and potential damage.
For operational technology (OT), applying ZT requires careful consideration because OT systems interact with the physical environment and are constrained by availability and safety requirements, as well as legacy technology with long lifespans. The blanket application of traditional information technology (IT)-focused ZT capabilities to OT is neither reasonable nor feasible and requires continuous collaboration between OT engineers, IT architects, and cybersecurity professionals. This collaboration should include clear communication channels, joint development of policies and controls, and a shared understanding of both mission objectives and technical limitations.
Read more…
Source: U.S. Federal Bureau of Investigation Cyber Division
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- CISA: Strengthening Cybersecurity of SATCOM Network Providers and Customers
March 17, 2022
CISA and the Federal Bureau of Investigation (FBI) are aware of possible threats to U.S. and international satellite communications (SATCOM) networks. Successful intrusions into SATCOM networks could create additional risk for SATCOM network customer environments. In response, CISA and FBI have published joint Cybersecurity Advisory (CSA) Strengthening Cybersecurity of SATCOM Network Providers and Customers, which provides ...
- Utility Cybersecurity: Situational Awareness Cuts Risk
March 14, 2022
The electric utility industry is one of the most critical infrastructure industries that highly affect people’s lives and economic activities. The power grids connect the systems of power generation, substation, transmission, and distribution over a wide area. They are going modernized and under threat from nation-state attacks. In the US, Biden’s administration took action to protect ...
- National Security Agency Cybersecurity Technical Report: Network Infrastructure Security Guidance
March 4, 2022
Guidance for securing networks continues to evolve as new vulnerabilities are exploited by adversaries, new security features are implemented, and new methods of securing devices are identified. Improper configuration, incorrect handling of configurations, and weak encryption keys can expose vulnerabilities in the entire network. All networks are at risk of compromise, especially if devices are not properly ...
- Threat landscape for industrial automation systems, H2 2021
March 3, 2022
2021 is the second year we have spent living and working in the pandemic. By 2021 everyone got used to pandemic limitations – industrial organization employees and IT security professionals and threat actors. If we compare the numbers from 2020 and 2021, we see that 2021 looks more stable, particularly in H2. The percentage of ICS ...
- Cisco Releases Security Updates for Multiple Products
March 3, 2022
Cisco has released security updates to address vulnerabilities in multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories page. CISA encourages users and administrators to review the following Cisco Security Advisories and apply the necessary updates: Cisco Expressway ...
- Building cyber secure Railway Infrastructure
February 28, 2022
The European Union Agency for Cybersecurity (ENISA) delivers a joint report with the European Rail Information Sharing and Analysis Center (ISAC) to support the sectorial implementation of the NIS Directive. The report released today is designed to give guidance on building cybersecurity zones and conduits for a railway system. The approach taken is based on the recently ...