runZero Hour, Ep. 15: Network topology, detailed fingerprinting and MODBUS love

On this episode of runZero Hour, Rob King and Tom Sellers welcome Brianna Cluck, researcher extraordinaire from GreyNoise Intelligence, covering a range of topics including:

  • Network topology: We go under the hood on network topology mapping and see how to spot exposures and segmentation issues. Plus, we learn about Brianna’s new research on tags with suspicious intention!
  • Fingerprinting network devices in detail: We deconstruct our updated Palo Alto probes and show you how to uncover more attributes on your network devices using creative new techniques.
  • MODBUS love: It’s the ICS protocol so popular it’s got a ton of proprietary, vendor-based extensions! Brianna shares recent research and tips for staying on top of the variations to keep your OT secure.
  • runZero updates: We've got new queries and categorizations for you, plus the ability to age out attributes to improve fingerprinting accuracy and reprocess tasks to fine tune asset data without losing history.

Meet Our Speakers

Tom Sellers

Principal Research Engineer

Rob King

Director of Applied Research, runZero

Brianna Cluck

Senior Security Researcher, GreyNoise

Subscribe Now

Get the latest news and expert insights delivered in your inbox.

Welcome to the club! Your subscription to our newsletter is successful.


Related Resources

Webcasts
runZero Hour, Ep. 27: KEVology 101 – observing exploit trajectories in the KEV Collider
In this episode or runZero Hour, Tod Beardsley, Rob King, and special guest Wade Sparks (CISA and VulnCheck KEV veteran) explore the science of...
Webcasts
Segmentation Theater: Finding the routes attackers use with HD Moore
From the SANS Winter Cyber Solutions Fest 2026: Utilities and Critical Infrastructure event, HD Moore presents Segmentation Theater.
Webcasts
How TeamSystem accelerates M&A integration with runZero
Learn how TeamSystem used runZero to accelerate M&A integration, reduce risk, and maintain confidence while scaling.
Webcasts
runZero Hour, Ep. 26: Exploring offseason resorts and OT networks with Brianna Cluck
In the first 2026 episode of runZero Hour, Rob King and Tod Beardsley chat it up with fan-favorite OT expert Brianna Cluck from GreyNoise...

See Results in Minutes

See & secure your total attack surface. Even the unknowns & unmanageable.