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Forrester rates Corelight a strong performer

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Corelight now powers CrowdStrike solutions and services

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Alerts, meet evidence.

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5 Ways Corelight Data Helps Investigators Win

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WEBINAR: Amplifying Security Insights with Corelight and Cribl

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Don't trust. Verify with evidence

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NDR for Dummies

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The Power of Open-Source Tools for Network Detection and Response

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The Evolving Role of NDR

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Detecting 5 Current APTs without heavy lifting

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Corelight Bright Ideas Blog

Richard Bejtlich

Day 1 detection: CVE-2020-0601, a community, and 40 lines of code

On Tuesday, Jan. 14, 2020, the world learned of the vulnerability du jour, CVE-2020-0601. As explained by Microsoft, “a spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC)... Read more »

No tap? No problem!

Recently a fan of network security monitoring (NSM) asked me for advice on his current instrumentation situation. He said his organization was new to NSM and was interested in pursuing solutions with Corelight. However, the company did not have any... Read more »

Using Corelight to monitor and identify exploited VPNs

Network and security infrastructure, such as routers, switches, firewalls, virtual private network concentrators, and other equipment, are designed to provide a stable and secure communications experience for client and server computers and their... Read more »

An attack or just a game? Corelight can help you tell the difference quickly

When we think about using Corelight data, our mental models often fixate on finding evidence of suspicious and malicious activity. This makes sense, as network security monitoring data generated by Corelight and Zeek combines the granularity of... Read more »

A conversation with GE’s former CIO on three keys to CIRT success

Earlier this month during Black Hat I had the good fortune to speak with Gary Reiner, a business leader for whom I have an immense amount of respect. Gary was the chief information officer (CIO) at General Electric (GE) for 20 years, and as such he... Read more »

Don’t delay – Corelight today!

Introduction Recently I heard that a company interested in Corelight was considering delaying their evaluation because of questions about SIEM technology. They currently have two SIEMs and are evaluating a third, possibly to replace the first two.... Read more »

What did I just see? Detection, inference, and identification

In the course of my network security monitoring work at Corelight, I’ve encountered the terms detection, inference, and identification. In this post I will examine what these terms mean, and how they can help you describe the work you do when... Read more »

Profiling Whonix

Introduction This week I read a story announcing that the latest edition of Whonix had been released. I had heard of Whonix, but had never tried it. I knew it was a Linux distribution that tried to make it as easy and safe as possible to anonymize... Read more »

Investigating the effects of TLS 1.3 on Corelight logs, part 3

Introduction Welcome to part 3 of my three-part series on TLS. In the previous two articles I briefly introduced TLS, and showed how Corelight would produce logs for a clear-text HTTP session. I then performed the same transaction using TLS 1.2, and... Read more »

Investigating the effects of TLS 1.3 on Corelight logs, part 2

Introduction Welcome to part 2 of my three-part series on TLS. In the previous article I briefly introduced TLS, and showed how Corelight would produce logs for a clear-text HTTP session. In this article I will perform the same transaction using TLS... Read more »

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