Network Visibility

Some things just go well together. A privilege of working with very sophisticated defenders in the open source community is seeing the design patterns they use to secure their organizations – both technology and workflows. One of the most common has... Read more »

With Corelight’s latest software release, v19, we are excited to announce the expansion of our Encrypted Traffic Collection (ETC). The ETC was introduced in late 2019, but as a reminder it’s a collection of security insights around SSL/TLS and SSH... Read more »

CVE-2020-13777 is a high severity issue in GnuTLS. In a nutshell, GnuTLS versions between 3.6.4 (released 2018-09-24) and 3.6.14 (2020-06-03) have a serious bug in their session resumption code, which lets attackers either completely decrypt... Read more »

Corelight sensors put your organization in the best position to watch over DNS traffic with a rich, powerful Network Traffic Analysis (NTA) data set. This article highlights the benefits of Corelight DNS logs, and demonstrates how Splunk Enterprise... Read more »

Introducing Corelight’s new story + the value of NTA Read more »

RSA 2020 is fast approaching, and a colleague asked what talks I planned to attend. As I am not attending RSA, I thought I would answer her question anyway, with the hopes that those participating in the conference might benefit from my review of... Read more »

In addition to other great news we’ve recently shared, I’m pleased to announce that Corelight sensors now support the Elastic Common Schema (ECS) via our Corelight ECS Mapping. Read more »

This week’s launch of version 18 of our software features the Encrypted Traffic Collection, our first collection of a series of detections and data enrichments created by the Corelight research team. This collection focuses on SSH, SSL/TLS... Read more »

Want to use Zeek (formerly Bro) network data in Splunk ES, but don’t know how to start or where to look? Read more »

With almost two decades of networking experience, I recently made my first foray into a security-centric user conference at Zeek Week, an annual conference for the user community of the open source network security monitoring platform known as Zeek... Read more »