Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Defender Spotlight Ep. 2: Spotting Suspicious RDP with Corelight Anomaly Detection

When a host suddenly starts serving RDP traffic, it’s time to investigate. See how a Corelight customer used ML-powered anomaly detection to flag unexpected network behavior that could indicate unauthorized remote access or lateral movement.

Episode 25 - Zeek at 30: Vern Paxson on Origins and Enduring Logs (Part 1)

Richard Bejtlich sits down with Vern Paxson, Corelight co-founder and Chief Scientist, to explore Zeek's 30-year journey from a Berkeley Lab research project to a data-rich backbone of modern NDR. They unpack how Zeek evolved from early TCP health measurements into a flexible, scriptable network analysis platform, the value of neutral, long-term logs over real-time alerts, comparisons to intrusion-detection approaches like Snort, and the challenges and opportunities of visibility in enterprise gear.

Episode 24 - Speaking Security So Leaders, Boards, and Buyers Actually Listen

In this episode, Richard Bejtlich talks with Julie Parrish, CMO at Corelight, about how security professionals can communicate more effectively with CISOs, boards, and buyers who each measure success differently. Julie explains why practitioners should frame requests in terms of risk instead of raw technology, why CISOs need to connect security investments to reputation, compliance, and business continuity, and why marketers lose credibility when they lean on buzzwords, analogies, or FUD instead of clarity and education.

Corelight Agent Builder Library: AI Investigation Demo

What happens when you ask a generic SIEM AI assistant and a Corelight-powered threat hunter agent the exact same question about a suspicious IP? The difference is not the model. It is the investigation expertise. In this demo, we walk through a side-by-side comparison using Elastic's agent builder. A default AI assistant returns a surface-level summary. An agent built with the Corelight Agent Builder Library identifies lateral movement, flags potential ransomware and data exfiltration, surfaces IDS alerts, maps involved hosts, and recommends next steps.

Episode 23 - Inside Zeek 9: Modernizing Open Source Network Monitoring & Agentic Security Scanning

In this episode, host Richard Bejtlich sits down with Christian Kreibich, Zeek's technical lead, to unpack the upcoming Zeek 9 release and what it means for practitioners. Christian explains how the project structures its three-releases-a-year cadence and how the team has spent recent cycles modernizing Zeek—including the shift to ZeroMQ for cluster messaging and new systemd-based cluster orchestration. A major thread is security.

Financial Firm Stops Identity Attack in Under 2 Hours

Developing the full picture of an incident is essential for SOC teams responding to complex threats. A financial firm faced this challenge when attackers created legitimate accounts within their Google Workspace environment. While native alerts flagged the activity, investigators needed deeper context to determine scope and exposure. With Corelight, the team gained the network evidence and chronological activity timeline needed to scope the incident and restore full visibility.

Episode 22 - The CTO's Case for AI: Fixing Bugs, Vibe Coding, and the Future of Dev Jobs

In this episode, host Richard Bejtlich sits down with Steve Smoot, Chief Technical Officer at Corelight, to explore how AI is reshaping the daily work of engineers and defenders alike. Steve traces his path from early employee to CTO and explains why the flexibility of Open NDR—where a simple ten-line Zeek or Spicy script can solve a customer's edge case without a full product release—remains a core advantage. The conversation digs into practical realities of working with large language models.

Episode 21 - Building AI Harnesses to Unify Detection and Response

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.

Securing Black Hat's NOC: Lessons from James Pope of 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.

Mythos: When Al becomes the attacker, the network becomes the first line of defense.

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.