Security news that informs and inspires
scrambled headshot of Dennis Fisher

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

824 articles by Dennis Fisher

Hydra Market Takedown Has Had Lasting Effects

The takedown of the infamous Hydra market has had lasting effects on the cybercrime underground and cryptocurrency laundering ecosystem.

Rsa2022, Cryptocurrency

Russian Government, Cybercriminal Cooperation a ‘Force Multiplier’

The Russian government's tolerance and sometime cooperation with the cybercriime groups in the country makes the threat from both factions even more serious, US officials say.

Russia, Rsa2022

Zero Day in Atlassian Confluence Under Attack

A newly disclosed zero day in some versions of Atlassian Confluence and Data Center is under attack and being used to install webshells on target servers.


CISA Warns of Karakurt Extortion Group

The Karakurt data extortion group is stealing sensitive information from enterprises and holding it for ransom, CISA warns.

Ransomware, Cisa

Exploits Target Zero Day in Windows and Office

A zero day flaw (CVE-2022-30190) in Windows and Office is under active attack and MIcrosoft has not issued a patch yet.