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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

1178 articles by Dennis Fisher

Exchange Attacks Hitting Broad Range of Organizations

Attackers are using the four Microsoft Exchange zero days to target organizations from SMBs to government agencies and banks.

Microsoft

Hafnium Attack Group Exploiting Four Exchange Zero Days

A Chinese attack group called Hafnium has exploited for zero days in Microsoft Exchange to steal data from inboxes and take control of compromised servers.

Microsoft, China

ObliqueRAT Delivered Via Rigged Image Files

The ObliqueRAT malware is now being delivered through malicious image files hosted on compromised websites.

Malware

Attackers Continue to Target Accellion FTA Flaws

Attackers are exploiting four vulnerabilities in the Accellion File Transfer Appliance, weeks after patches were released.

CISA, Vulnerability

SolarWinds Hack Leads to Calls for Confidential Data Sharing

Confidential threat intelligence sharing could help prevent the next large-scale intrusions, tech executives say.

Solarwinds, Government