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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

1125 articles by Dennis Fisher

Exploit Code Published for Ivanti Sentry Flaw

Researchers have published working exploit code for the Ivanti Sentry CVE-2023-38035 flaw.


Serious RCE Bug Fixed in WinRAR

The makers of WinRAR have released a new version that fixes a serious remote code execution flaw (CVE-2023-4407) in the compression utility.


Phishing Campaign Targets Zimbra Users

A newly identified phishing campaign is targeting Zimbra Collaboration users around the world.


Mandiant Releases Scanner for Citrix ADC Bug

Mandiant has released a scanner to identify appliances that have been compromised through exploitation of CVE-2023-3519.


Lapsus$ Analysis Finds Need for Better IAM, MFA Deployments

A detailed analysis of the activities of the Lapsus$ hacking group by the Cyber Safety Review Board shows that a focus on the basics and better usage of IAM and MFA technologies are highly effective defenses.

Government, Lapsus$