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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

1140 articles by Dennis Fisher

To Fix IoT Security, ‘We Need to Aim at the Security Have-Nots’

The IoT security landscape is grim, but private sector and government experts are trying to improve things through advocacy and collaboration.

RSA Conference

Attacker Accessed Dropbox Sign User Authentication Data in Recent Intrusion

An unknown attacker compromised a customer database for Dropbox Sign and accessed authentication information such as OAuth tokens and MFA data.

Data Breach

RSA Conference 2024 Preview: The Sessions to See This Year

In this special episode, Dennis Fisher and Lindsey O'Donnell-Welch are joined by Brian Donohue of Red Canary to preview the RSA conference talks they're excited about and to try to make sense of some of the session titles that are maybe a little indecipherable.

RSA, Video

Verizon DBIR: Enterprises Know the Pain of Zero Day Exploits All Too Well

The Verizon 2024 Data Breach Investigations Report shows a 180 percent increase in the use of vulnerability exploits in breaches from last year, thanks to MOVEit Transfer and other bugs.

Data Breach

Cactus Ransomware Group Targets Qlik Sense Servers

Cactus ransomware actors are targeting Qlik Sense servers with exploits for three separate vulnerabilities in an ongoing campaign.