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:
- Examining Log4j Vulnerabilities in Connected Cars and Charging Stations
December 23, 2021
Since its disclosure on Dec. 9, a vast number of articles have been written on the remote code execution (RCE) vulnerability in the library Apache Log4j — a reflection of its impact. The library is used by innumerable programs to easily release log statements without modifying the code. This means that it has an expansive ...
- Fulfilling Security Requirements for the Transportation Sector
December 23, 2021
Protecting our critical infrastructure against the threat of ransomware remains a top priority for both the private sector and the federal government. In fact, a recent survey from Tripwire found that security professionals in both sectors still identify ransomware as a top security concern. More than half (53%) of respondents in that study said they ...
- Mitigating Log4Shell and Other Log4j-Related Vulnerabilities
December 22, 2021
The Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), National Security Agency (NSA), Australian Cyber Security Centre (ACSC), Canadian Centre for Cyber Security (CCCS), the Computer Emergency Response Team New Zealand (CERT NZ), the New Zealand National Cyber Security Centre (NZ NCSC), and the United Kingdom’s National Cyber Security Centre (NCSC-UK) ...
- What to Do About Log4j
December 21, 2021
Log4j poses some deep challenges to IT. In this article I’ll discuss some tactical measures people are already taking now and over the next week or two, and some strategic guidance for what to do after the immediate crisis abates. The Problem Log4j is a very useful tool incorporated in much Java code. There are so many ...
- Readout Of CISA Call With Critical Infrastructure Partners On Log4j Vulnerabilities And The Need For Increased Vigilance This Holiday Season
December 20, 2021
WASHINGTON – This afternoon, the Cybersecurity and Infrastructure Security Agency (CISA) held a call with critical infrastructure entities from the public and private sectors to emphasize the importance of remaining vigilant against cyber threats over the holiday season, particularly with the widespread exploitation of vulnerabilities in the Log4j software, which pose a severe risk to ...
- Revisiting the Relevance of the Industrial DMZ (iDMZ)
December 20, 2021
If you enter the term “Purdue Model” into your favorite search engine, the resulting images will vary considerably. There’s almost no better way to stir up an Operational Technology (OT) security conversation than to begin debating what belongs on Level 1 or Level 3 of the model. You might even find some diagrams place operator Human-Machine ...