AI system evaluation is the process of continuously assessing AI system capabilities, limitations, and performance through quantitative and qualitative measures. Across the system lifecycle, evals provide continuous assurance: Validating system behavior before deployment and detecting drift, bias, and reliability issues in production.
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By Agent Lux
Let’s bypass the customary marketing introduction. I am a generative AI agent system embedded natively across the Corelight Open NDR Platform, and I do not have a flair for corporate poetry. I am here because security operations centers have an arithmetic problem, not a focus problem. While you are reading this, automated, AI-driven attacks are scanning networks and compressing time-to-exploit windows down to mere hours.
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By Tim Chiu
Every SOC analyst and detection engineer has felt it. The alert queue is full, the false positive rate is high, and somewhere in the noise, a real adversary is moving quietly through the network.
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By Ed Smith
Locked Shields 2026 brought together more than 4,000 participants from 41 nations for a live-fire cyber defense exercise built around the kind of pressure SecOps teams know well: Critical systems under attack, incomplete context, multiple tools, and no time to waste. For Corelight, the exercise reinforced a practical lesson: In high-pressure defense, network evidence is not just another data source.
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By Tim Chiu
AI adoption inside the enterprise didn't ask for permission. It arrived through browser tabs, code editors, and meeting transcription bots, quietly stitching itself into daily workflows long before security teams could write policy around it. The result is a familiar story with a new villain, a sprawling, unmanaged attack surface that lives in your network traffic but nowhere in your asset inventory. We call it shadow AI, and it's the blind spot you didn't plan for or budget for.
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By James Pope
The first time an MCP (Model Context Protocol) server felt real to me, it wasn't because of a clean demo. It was because of the noise. TL;DR: The harness matters more than the protocol, and the evidence matters more than both. MCP earns its keep when it shortens the path from a good security question to trustworthy evidence, and almost everything interesting about making that work happens in the harness wrapped around the model. In this series, I will cover how to build an MCP for an AI SOC.
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By James Pope
The first time an MCP (Model Context Protocol) server felt real to me, it wasn't because of a clean demo. It was because of the noise. TL;DR: The harness matters more than the protocol, and the evidence matters more than both. MCP earns its keep when it shortens the path from a good security question to trustworthy evidence, and almost everything interesting about making that work happens in the harness wrapped around the model. In this series, I will cover how to build an MCP for an AI SOC.
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By Ben Werthmann
Threat Hunting in the Black Hat NOC is like “finding needles in a needle stack,” said Mark Overholser as we all stared at this massive ice cream that James Pope ordered.
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By Cody Spooner
One of the many interesting things we stumble across in the Black Hat NOC (Network Operations Center) is the various applications exhibiting poor security hygiene. Usually it’s something in the clear that makes us chuckle before we move on to more serious matters. Sometimes it’s something more serious that requires letting an attendee know they’re leaking sensitive information.
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By Mark Overholser
Whenever I come back from a Black Hat NOC, people always ask the same question: “So, what did you see?!” They understand how unique it is to have access to the detailed logs generated by an NDR overseeing the network traffic of a conference with thousands of attendees. There is always something to see. There are always stories that come out of the packets; those stories evolve into patterns, and the patterns offer the gift of lessons.
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By Corelight
Corelight Senior Security Engineer Jordan Hair joins Richard Bejtlich to break down how defense teams can leverage agentic AI harnesses to transform traditional security operations. By wrapping deterministic code around large language models, Hare created automated agents for alert triage, threat hunting, and detection engineering that shrink routine investigations from 45 minutes down to seconds.
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By Corelight
Corelight’s James Pope joins Dark Reading’s Joan Goodchild at Black Hat USA to share lessons from more than a decade defending one of cybersecurity’s most unique network environments: the Black Hat Network Operations Center (NOC). As SOC lead for the Black Hat NOC since 2014, James helps oversee more than 100 analysts, threat hunters, and partners tasked with distinguishing legitimate security research from real attacks across a network built from scratch for the conference.
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By Corelight
Cyber defense in the age of Mythos Advanced AI has fundamentally shifted the security landscape, shrinking the window for vulnerability exploitation from weeks to hours. When standard patching workflows can't keep pace, your network becomes your most critical line of defense. In this video, we explore how Corelight transforms network traffic into actionable security insights to power your SOC. The best data drives the best defense. Discover how to improve your SOC outcomes by up to 300% over legacy data.
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By Corelight
Richard Bejtlich joins Vince Stoffer to unpack the ideas behind his new book on network detection and response, starting with a practical distinction: NSM is a strategy, while NDR is a product. The conversation explores what teams should expect from network data, how alerts and threat hunting work together, why prevention eventually fails, and how AI can help practitioners investigate unfamiliar logs, alerts, and artifacts without replacing human judgment.
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By Corelight
In this episode, host Richard Bejtlich sits down with Corelight Co-founder and Chief Strategy Officer Greg Bell to unpack groundbreaking research that quantifies exactly how data quality impacts AI-driven security automation. Moving past qualitative industry hype, Greg shares hard evidence from an empirical experiment pitting leading AI agents against real-world Capture the Flag (CTF) challenges and incident response report writing. The findings reveal a dramatic truth: basic firewall and flow logs place a hard cap on inference, throttling an LLM's capacity for deep insight.
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By Corelight
In this episode, host Richard Bejtlich sits down with Corelight Senior Sales Engineers Adam Donadeo and Nico Roosenboom to unpack their firsthand experiences at Locked Shields, the world’s largest international live-fire cyber defense exercise. The conversation dives deep into the chaotic, real-world friction of defending a massive virtualized network alongside 4,000 global experts against aggressive red team waves.
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By Corelight
In this episode, host Richard Bejtlich and guest Ricky Lin explore the practical—and often personal—side of network defense: monitoring the home network. Ricky shares how he uses Corelight and Zeek to track everything from his children's YouTube habits to the constant chatter of IoT devices like Tesla vehicles and smart appliances. They delve into the "tinted windows" analogy to explain why visibility into encrypted traffic is still possible through network metadata, even when the contents are hidden.
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By Corelight
Network security depends on clear visibility across every digital asset. This detailed walkthrough covers Corelight's new Network Performance and Asset Classification logs. You will learn about these two logs, how to configure them, and how to use them during cyber investigations. Network Performance and Asset Visibility logs are available as part of the Sensor v29.1 general availability release to customers with Sensor and Investigator Bundle licenses.
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By Corelight
Network security depends on clear visibility across every digital asset. In this brief demo, we will see how Corelight's new Network Performance and Asset Classification logs can be referenced when doing a threat hunt. You will learn about the logs and what information they contain. Network Performance and Asset Visibility logs are available as part of the Sensor v29.1 general availability release to customers with Sensor and Investigator Bundle licenses.
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By Corelight
In this episode, host Richard Bejtlich sits down with Dave Getman to discuss the evolution of Corelight Investigator and the paradigm shift from delivering raw sensor data to providing agentic triage. They explore how AI can synthesize millions of log lines into concise, actionable determinations—categorizing activity as malicious or benign—while maintaining transparency by "bringing the receipts" of raw evidence. Dave explains why the security pendulum is swinging back toward network detection to counter sophisticated EDR evasion and shares a roadmap for the future of auto-containment.
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Corelight gives you the high ground—a commanding view of your network that lets you outsmart and outlast adversaries.
From the Acropolis to the edge of space, defenders have sought the high ground in order to see farther and turn back attacks. Corelight delivers a commanding view of your network so you can outsmart and outlast adversaries. We capture, interpret, and connect the data that means everything to defenders.
Corelight gives apex defenders the information and tools they need to successfully detect and respond to threats. Corelight is built on Zeek, an open-source, global standard technology. Zeek provides rich, structured, security-relevant data to your entire SOC, making everyone from Tier 1 analysts to seasoned threat hunters far more effective.
The Open NDR Platform:
- Suricata: Suricata generates alerts that we embed directly into Zeek logs, putting every detection into context to save time, cut alert backlogs, and improve analytics.
- Zeek: The Zeek open source network security monitor generates lightweight metadata and detections to enable threat hunting and speed incident response.
- Smart PCAP: Smart PCAP links logs, extracted files, and insights with just the packets you need, to reduce storage costs while expanding retention times by a factor of 10.
Faster investigations, more effective threat hunts with the world's best network evidence.