Software Engineering Institute | Carnegie Mellon University

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As a machine learning research scientist and a Ph.D. in statistics, I've noticed that statistics and machine learning often use different terminology for similar concepts. I recently confronted this when I began reading about maximum causal entropy as part of a project on inverse reinforcement learning. Many of the terms were unfamiliar to me, but as I read closer, I realized that the concepts had close relationships with statistics concepts. This blog post presents a...

Earlier this year, a team of researchers from the SEI CERT Division's Network Situational Awareness Team (CERT NetSA) released an update (3.17.0) to the System for Internet-Level Knowledge (SiLK) traffic analysis suite, which supports the efficient collection, storage, and analysis of network flow data, enabling network security analysts to query large historical traffic data sets rapidly and scalably. As this post describes, our team also recently updated the Network Traffic Analysis with SiLK handbook to...

The CERT National Insider Threat Center (NITC) Insider Threat Incident Corpus contains over 2,000 incidents, which, as Director Randy Trzeciak writes, acts as the "foundation for our empirical research and analysis." This vast data set shows us that insider incidents impact both the public and private sector, with federal government organizations being no exception. As Carrie Gardner introduced in the previous blog post in this series, federal government organizations fall under the NAICS Codes for...

Software developers are increasingly pressured to rapidly deliver cutting-edge software at an affordable cost. An increasingly important software attribute is security, meaning that the software must be resistant to malicious attacks. Software becomes vulnerable when one or more weaknesses can be exploited by an attacker to cause to modify or access data, interrupt proper execution, or perform incorrect actions....

This post was co-authored by Robert Nord. Technical debt communicates the tradeoff between the short-term benefits of rapid delivery and the long-term value of developing a software system that is easy to evolve, modify, repair, and sustain. Like financial debt, technical debt can be a burden or an investment. It can be a burden when it is taken on unintentionally without a solid plan to manage it; it can also be part of an intentional...

As Randy Trzeciak mentioned in the first blog in this series, we are often asked about the commonalities of insider incidents for a particular sector. These questions invariably begin conversations about which sector-specific best practices and controls are best suited to address the common incident patterns faced by these organizations. To better address this question, we decided to update our model for coding industry sectors1, or what classification system we use to organize the organizations...

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