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Subject: OCTAVE

Evaluating Threat-Modeling Methods for Cyber-Physical Systems

Evaluating Threat-Modeling Methods for Cyber-Physical Systems

• SEI Blog
Nataliya Shevchenko

Addressing cybersecurity for а complex system, especially for а cyber-physical system of systems (CPSoS), requires a strategic approach during the entire lifecycle of the system. Examples of CPSoS include rail transport systems, power plants, and integrated air-defense capability. All these systems consist of large physical, cyber-physical, and cyber-only subsystems with complex dynamics. In the first blog post in this series, I summarized 12 available threat-modeling methods (TMMs). In this post, I will identify criteria for...

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Threat Modeling: 12 Available Methods

Threat Modeling: 12 Available Methods

• SEI Blog
Nataliya Shevchenko

Almost all software systems today face a variety of threats, and the number of threats grows as technology changes. Malware that exploits software vulnerabilities grew 151 percent in the second quarter of 2018, and cyber-crime damage costs are estimated to reach $6 trillion annually by 2021. Threats can come from outside or within organizations, and they can have devastating consequences. Attacks can disable systems entirely or lead to the leaking of sensitive information, which would...

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A Taxonomy for Managing Operational Cybersecurity Risk

A Taxonomy for Managing Operational Cybersecurity Risk

• SEI Blog
James Cebula

Organizations are continually fending off cyberattacks in one form or another. The 2014 Verizon Data Breach Investigations Report, which included contributions from SEI researchers, tagged 2013 as "the year of the retailer breach." According to the report, 2013 also witnessed "a transition from geopolitical attacks to large-scale attacks on payment card systems." To illustrate the trend, the report outlines a 12-month chronology of attacks, including a January "watering hole" attack on the Council on Foreign...

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