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Marcus is renowned in the cybersecurity industry and has spent his more than 20-year career working in penetration testing, incident response, and digital forensics with federal agencies such as NSA, DC3, DIA, and DARPA.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.