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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

1182 articles by Dennis Fisher

NetWalker Ransomware Suspect Sent to U.S.

A Canadian man who U.S. authorities allege is part of the NetWalker ransomware operation has been extradited to the U.S.

Ransomware

Alleged REvil Operator Extradited to U.S.

A Ukrainian man charged with using the REvil ransomware in the attack on Kaseya last summer has been extradited to the U.S. and arraigned in Texas.

Ransomware

FBI Warns of Ragnar Locker Attacks on Critical Infrastructure

The FBI says that the Ragnar Locker ransomware group has compromised more than 50 critical infrastructure organizations in the U.S.

Ransomware

Serious ‘Dirty Pipe’ Bug Patched in Linux Kernel

A serious kernel bug (CVE-2022-0847) that allows an attacker to write any data to an arbitrary file has been fixed in Linux and Android.

Linux

Trio of Flaws Allows Remote Takeover of Some APC UPS Devices

Three vulnerabilities in some models of APC UPS devices can allow an attacker to upload a malicious firmware image and use the devices for further network attacks.

ICS Security