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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

1182 articles by Dennis Fisher

GitHub Fixes Bug That Could Have Routed Authenticated Sessions to Other Users

GitHub has patched a flaw in a backend system that in rare cases could have routed one user's authenticated session to another user's browser.

Software Security

Microsoft Fixes IE 0-Day Used in Attacks on Researchers

Microsoft has patched a zero day in Internet Explorer and Edge that was used in attacks against security researchers.

Microsoft

Attacks on Exchange Servers Spread

Attacks on the Exchange server flaws disclosed last week are being exploited by multiple threat actors and targeting a wide range of companies.

Microsoft

‘The Whole World is Built on Software’

MiIke Hanley, the new GitHub CSO, sees myriad opportunities to have a positive influence on software security.

Software Development

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