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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

1164 articles by Dennis Fisher

Critical PHP Flaw CVE-2024-4577 Patched

A critical remote code execution bug (CVE-2024-4577) in all versions of PHP on Windows has been patched. The bug also affects all Windows versions of XAMPP.


The Challenge of Reporting on Complex Breaches

Veteran security journalist and podcaster Ryan Naraine joins the Decipher podcast to discuss the challenges of separating fact from fiction when reporting on complex incidents such as the Snowflake breach.


Exploit Attempts Against Check Point CVE-2024-24919 On the Rise

Hundreds of separate IP addresses are now trying to exploit the Check Point patch traversal flaw (CVE-2024-24919) that was disclosed lat week.

Check Point

Researchers Warn of Potential Abuse of Azure Service Tags

Tenable researchers discovered a technique for abusing Azure service tags to bypass firewall rules and Microsoft has issued new guidance for customers.

Azure, Microsoft

Operation Endgame Targets Trickbot, IcedID, Other Botnets in Huge Disruption

Europol and other agencies disrupted several major malware families, including IcedID, Bymblebess, Trickbot, and Smokeloader in an action dubbed Operation Endgame.

Malware, Trickbot