Malvertising campaign leads to info stealers hosted on GitHub
Microsoft detected a large-scale malvertising campaign in early December 2024 that impacted nearly one million devices globally.
Cyberattacker techniques, tools, and infrastructure
Cyberattackers constantly evolve their techniques, tools, and infrastructure to launch increasingly complex attacks. Learn about the latest tactics and how to detect, disrupt, and defend against them.
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File hosting services misused for identity phishing
Since mid-April 2024, Microsoft has observed an increase in defense evasion tactics used in campaigns abusing file hosting services like SharePoint, OneDrive, and Dropbox. -
Octo Tempest crosses boundaries to facilitate extortion, encryption, and destruction
Microsoft has been tracking activity related to the financially motivated threat actor Octo Tempest, whose evolving campaigns represent a growing concern for many organizations across multiple industries. -
Structured threat hunting: One way Microsoft Defender Experts for Hunting prioritizes customer defense
Our approach to threat hunting is designed to evaluate impact and escalate potential threats for investigation, based on how damaging the potential threat would be.
