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Dennis Fisher

Editor in Chief

Dennis Fisher is an award-winning journalist who has been covering information security and privacy since 2000.

He is one of the co-founders of Threatpost and previously wrote for TechTarget and eWeek, when magazines were still a thing that existed. Dennis enjoys finding the stories behind the headlines and digging into the motivations and thinking of both defenders and attackers. His work has appeared in The Boston Globe, The Improper Bostonian, Harvard Business School’s Working Knowledge, and most of his kids’ English papers.

Featured Articles

1182 articles by Dennis Fisher

ESXiArgs Ransomware Infections Spike

A new spike in ESXiArgs ransomware infections has emerged in the last couple of days, targeting servers in the UK and Europe.

Vmware, Ransomware

Microsoft Patches Three Actively Exploited Bugs

In its February patch release, Microsoft fixed three vulnerabilities in Windows that have been actively exploited.

Microsoft

CISA Warns of Ongoing Ransomware Attacks by North Korean Actors

CISA, the FBI, and NSA are warning about ongoing ransomware attacks by North Korean groups that target government agencies and defense companies.

North Korea, Ransomware

‘We Are at the Time’s Up Phase for Industrial Security’

New data from Dragos shows that ransomware attacks against ICS systems are increasing, and sophisticated malware designed for those environments is now a reality.

Ransomware, ICS

Attacker Accessed Some Reddit Code, Business Systems

A phishing attack allowed an attacker to steal a Reddit employee's credentials and gain access to some internal company systems last week.

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