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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.

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846 articles by Dennis Fisher

CISA Warns of Karakurt Extortion Group

The Karakurt data extortion group is stealing sensitive information from enterprises and holding it for ransom, CISA warns.

Ransomware, Cisa

Exploits Target Zero Day in Windows and Office

A zero day flaw (CVE-2022-30190) in Windows and Office is under active attack and MIcrosoft has not issued a patch yet.

Microsoft

Cisco Patches Serious Flaw in IOS

Cisco has patched a flaw in IOS XR that can allow an attacker to write arbitrary files to the Redis instance.

Vulnerability

QNAP Warns of Deadbolt Ransomware Targeting NAS Devices

QNAP is urging customers to remove NAS devices from the Internet amid a new wave of Deadbolt ransomware intrusions.

Ransomware

NVIDIA Fixes Serious Flaws in GPU Driver

NVIDIA has released an update to fix a number of serious code-execution flaws in its GPU display driver that could be used to perform guest-to-host escapes.

Vulnerability