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Author Bio


Dennis Fisher

Editor

Dennis Fisher is an award-winning journalist and author. He is one of the co-founders of Decipher and Threatpost and has been writing about cybersecurity since 2000. Dennis enjoys finding the stories behind the headlines and digging into the motivations and thinking of both defenders and attackers. He is the author of 2.5 novels and once met Shaq. Contact: dennis at decipher.sc.

dennis@decipher.sc

Featured Articles


AI Attack and Defense With Adam Meyers and Elia Zaitsev of CrowdStrike

Have you heard about this AI thing? It’s wild. Turns out, attackers are using it for all kinds of things we’d rather not have them doing. Dennis Fisher is joined by two experts from CrowdStrike–Adam Meyers, head of counter adversary operations, and Elia Zaitsev, CTO–to talk about how both defenders and attackers are leveraging AI […]

By Dennis Fisher

October 15, 2025 | 1 min read

AIVideo

F5: Attacker Accessed BIG-IP Source Code, Bug Data

The company discovered the intrusion in August but did not say when the attackers first gained access to F5’s systems or how long they had access.

By Dennis Fisher

October 17, 2025 | 2 min read

Data breachF5

More Cl0p Clues and Huge Apple Bug Bounty Changes

This week brings some new insights into the origins and length of the Cl0p extortion attacks tied to the Oracle E-Business Suite vulnerability, big surges in scanning for Cisco ASA, Palo Alto, and Fortinet devices, and a huge upgrade to Apple bug bounty payouts.

By Dennis Fisher

October 10, 2025 | 1 min read

Data breachPodcastRansomware
Fiber optic cables

Data Connects Scanning Surges for Cisco, Fortinet, PAN Devices

Researchers say that all three campaigns are being driven at least in part by one threat actor. 

By Dennis Fisher

October 8, 2025 | 2 min read

Malware

The Hacker Movie Canon: WarGames

What you see on these screens up here is a fantasy; a computer-enhanced hallucination. WarGames may be 42 years old (!) but its prescience about our current technocracy and race to take humans out of the loop is as clear as ever. Dennis Fisher, Lindsey O-Donnell-Welch, Zoe Lindsey, and Pete Baker sit down in front […]

By Dennis Fisher

October 8, 2025 | 1 min read

HackersVideo

The Cl0p-Oracle Extortion Emails, Red Hat Breach, and Sad Government News

Dennis and Lindsey dissect a busy week in security news, starting with the Cl0p group’s extortion campaign against Oracle customers (3:24), then moving into the Crimson Collective’s claimed breach of some of Red Hat GitLab’s repos (12:41), and finally the consequences of the expiration of th CISA legislation and de-funding of the MS-ISAC (22:46). We also […]

By Dennis Fisher

October 3, 2025 | 1 min read

Data breachPodcastRansomware
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