Security news that informs and inspires
scrambled headshot of Dennis Fisher

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

New MetaStealer Malware Targets macOS Users

A new strain of infostealer targeting Macs, known as MetaStealer, is hitting enterprises.

Apple

Decipher Podcast: Trickbot Sanctions, Apple Zero Days, and a Stolen Microsoft Key

Decipher editors Dennis Fisher and Lindsey O'Donnell-Welch break down a busy news week, including Microsoft's revelations about the theft of its signing key, the Trickbot group sanctions, and some new Apple iOS zero days.

Apple, Podcast, Microsoft, Trickbot

U.S., U.K. Hit Trickbot Group With Fresh Sanctions

The Department of the Treasury and the U.K. government have sanctioned 11 alleged members of the Trickbot group and say the group is allied with Russian intelligence.

Trickbot, Russia

Adversaries Shift Tactics in Attacks on Citrix NetScaler Flaw

Attackers are continuing to adjust their tactics in their attacks against Citrix devices vulnerable to the CVE-2023-3519 flaw.

Citrix

Xen Fixes Cache Flaw

The Xen Project has released an update to address a bug (CVE-2023-34321) that can allow a guest to read sensitive data from another's guest's memory.

Xen