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Allan Liska.

Allan “Ransomware Sommelier” Liska, Ransomware Specialist

With more than 20 years of experience in ransomware and information security, Allan Liska has improved countless organizations’ security posture using more effective intelligence. Liska provides ransomware-related counsel and key recommendations to major global corporations and government agencies, sitting on national ransomware task forces and speaking at global conferences. Liska has worked as both a security practitioner and an ethical hacker at Symantec, iSIGHT Partners, FireEye, and Recorded Future. Regularly cited in The Washington Post, Bloomberg, The New York Times, and NBC News, he is a leading voice in ransomware and intelligence security. Liska has authored numerous books including:

  • The Practice of Network Security 

  • Building an Intelligence-Led Security Program

  • Securing NTP: A Quickstart Guide

  • Ransomware: Defending Against Digital Extortion

  • DNS Security: Defending the Domain Name System

  • Ransomware: Understand.Prevent.Recover

He is also the founder of Green Archer Comics and the creator of the Yours Truly, Johnny Dollar comic.

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