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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

596 articles by Dennis Fisher

Enterprises Are Patching Faster, Reducing Vulnerability Debt

Enterprises are patching more high-risk vulnerabilities faster now than just a year ago, new data from Kenna Security shows.

Vulnerability Management

Iranian APT Group Phosphorus Targets Medical Researchers

The Phosphorus attack group, also known as Charming Kitten, recently targeted medical researchers in a new spear phishing campaign.

Apt, Iran

Decipher Podcast: Lindsey O’Donnell-Welch

Decipher's new executive editor, Lindsey O'Donnell-Welch, joins Dennis Fisher to talk about getting into security journalism, the challenges of telling highly technical stories, and how it can help defenders do their jobs more efficiently.


Malicious Code Added to PHP Source

An attacker pushed two malicious commits to the PHP source code Git server on Sunday, adding a backdoor, which was quickly removed.


In Wake of SolarWinds Breach, the Challenge of Building Secure Software Remains

SolarWinds is testing a system of parallel build servers to help prevent a future supply chain attack on its infrastructure.

Solarwinds, Software Security