Mark has been in information security for about 30 years, starting off in academia, and focused on networking, to moving to Unix systems, and then into firewalls, VPNs, load balancing/clustering technologies, and IDS/IPS. He briefly worked with Sourcefire, teaching Snort, Sourcefire, and Snort Rule Writing. After joining McAfee, he lent expertise as a product-side consultant, before changing paths to get into consulting on all things defensive – blue team work including DFIR, threat hunting, threat intelligence, holistic security improvements, compliance, and more.
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