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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

945 articles by Dennis Fisher

Google Rolls Out Support for Passkeys in Android and Chrome

Google is rolling out support for passkeys in Android and Chrome in a significant step toward passwordless authentication.

Passwords, Google

New Alchimist C2 Framework Emerges

Researchers at Cisco Talos have uncovered a new all-in-one C2 framework called Alchimist that has implants called Insekt for Windows and Linux.


Hardcoded Private Key Leads to Full Control of Some Siemens PLCs

A newly discovered flaw (CVE-2022-38465) in some Siemens S7 PLCs can allow an attacker to extract the hardcoded private key of the controller and gain complete control.

Ics, Siemens

Decipher Podcast: Juan Andres Guerrero-Saade

Dennis Fisher talks with Juan Andres Guerrero-Saade, senior director at SentinelLabs, about the investigation into the new Metador APT group that he and his colleagues unveiled at LabsCon recently.


Bumblebee Loader Evolves to Drop New Payloads

The Bumblebee malware loader is delivering separate payloads for different machines and using new evasion techniques.