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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

1108 articles by Dennis Fisher

CISA Details Cloud-Focused Attack Techniques Used by APT29

CISA and some its foreign partner agencies are warning that APT29 is using a variety of techniques to target cloud services and accounts.

Cloud, Russia

Critical ScreenConnect Flaw Under Active Exploitation

The ConnectWise ScreeConnect authentication vulnerability disclosed this week is now under active exploitation and there is proof-of-concept exploit code available.


Decipher Podcast: Jennifer Leggio Returns

Jennifer Leggio, a longtime security industry executive who has served in many different roles, joins Dennis Fisher to talk about the shift in thinking among those in the security community, technical gatekeeping in security, her new consulting venture Moveable Feast, and finding your niche.


Decipher Podcast: LockBit Takedown

Dennis Fisher and Lindsey O'Donnell-Welch discuss the disruption of the LockBit ransomware operation by the FBI, Europol, and UK authorities, what it means for victims, and how it fits into the government's larger strategy to target cybercrime groups.


The Creeping Threat of Security Debt

A new study shows that more than 70 percent of organizations have applications with vulnerabilities that are more than a year old, and nearly 50 percent have critical bugs that old.

Software Security