Stealthy Deep#Door Stealer Targets Windows Machines, Credentials
Deep#Door stealer is being used in intrusions targeting Windows machines, using an obfuscated deployment chain.
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Microsoft
33 Posts
New Campaign Targets Mac Users With Novel Malware
The campaign targets high-value individuals and organizations in the cryptocurrency, digital assets, and finance sectors.
Myths and Mythos: An AI Vulnerability Research FAQ
It’s still very early days for all of this, and relatively little is known about Claude Mythos’s real capabilities, so we wanted to dig into what actually is known and what it all means.
The Zero Day Landscape, Tycoon 2FA Disruption, and KEVology
Every day is zero day, and this week we talked about the new Google Threat Intelligence Group report on the zero day exploit landscape in 2025 (2:22) and who’s exploiting what, then we discuss Microsoft’s disruption of the Tycoon 2FA cybercrime operation (9:51), and finally we talk about the KEVology report from runZero and our […]
Microsoft, Europol Disrupt Tycoon 2FA Phishing Service
The comprehensive effort, which involved seizing 330 active domains, cuts off a critical pipeline for account takeovers that targeted over 500,000 organizations and sent tens of millions of fraudulent emails monthly.
Microsoft Uncovers New Malicious Campaign Targeting Developers
This campaign is an offshoot of the more familiar and pervasive fake job interview and phony tech worker scams that have been coming from North Korea for several years.