At Infosecurity Europe 2026 in London, Matt Ellison, Director of Sales Engineering EMEA & APAC at Corelight, joins Sean Martin to unpack the visibility gap widening across security operations. The SOC is either drowning in data or missing the data that matters most. Corelight, custodian of the open-source Zeek project, builds a platform that turns raw network traffic into evidence teams can actually use.
Why do today's most evasive attacks slip past endpoint detection? Because they are designed to. Ellison points to typhoon-style campaigns staged from network and hardware devices specifically to avoid EDR. When a platform sees all of the network traffic moving backwards and forwards, those moves stop being invisible.
Seeing more is only half the battle. Ellison describes teams trapped by a fear of missing something, switching on every "just in case" detection until alert volume becomes its own crisis. The real question shifts from "what fired" to "what does this actually mean for my environment."
How do you investigate a detection you cannot see inside? A black box hands down a verdict with no evidence behind it. Corelight takes an open approach, exposing the data behind every conclusion so analysts can follow a flow to its root cause and apply the one thing no vendor ships: their own knowledge of the network.
The proof tends to show up fast. Ellison recalls a proof of value where, within thirty minutes, the team surfaced sensitive information moving unencrypted across the network. Other finds are smaller but telling, like a finance team's certificate using a weak cipher. Corelight even names its catch-all logs plainly, the "weird" log and the "unknown" log.
Visibility feeds compliance too. Frameworks like NIS2, DORA, and GDPR demand evidence, not a tool humming in the corner that no one reviews. Ellison previews a coming release that adds asset classification, identifying every device on the network and explaining the why behind it.
This is a Brand Spotlight. A Brand Spotlight is a ~15 minute conversation designed to explore the guest, their company, and what makes their approach unique. Learn more: https://www.studioc60.com/creation#spotlight
GUEST
Matt Ellison, Director of Sales Engineering EMEA & APAC, Corelight
LinkedIn: https://www.linkedin.com/in/matthewrellison/
RESOURCES
Learn more about Corelight, including customer stories: https://corelight.com
Zeek, the open-source NDR project Corelight maintains: https://zeek.org
Infosecurity Europe 2026 coverage from ITSPmagazine: https://www.itspmagazine.com/infosecurity-europe-2026-infosec-london-cybersecurity-event-coverage
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KEYWORDS
Matt Ellison, Corelight, Sean Martin, brand story, brand marketing, marketing podcast, brand spotlight, network detection and response, NDR, Zeek, open source security, network visibility, threat hunting, SOC alert fatigue, EDR evasion, encrypted traffic analysis, NIS2, DORA, GDPR, Infosecurity Europe 2026
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