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

1182 articles by Dennis Fisher

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

Analyzing the Qakbot Disruption

Decipher editors Dennis Fisher and Lindsey O'Donnell-Welch discuss the FBI's disruption of the Qakbot malware operation and what it might mean for the larger malware ecosystem.

Qakbot

Splunk Patches ANSI Bug in ITSI

Splunk has released updates to fix an odd bug that allows an attacker to inject special codes into log files, potentially leading to remote code execution.

Splunk

Attackers Target Juniper SRX and EX Flaws

Adversaries are targeting flaws in Juniper's EX and SRX series devices that can be chained together to gain remote code execution.

Juniper