Containing a domain compromise: How predictive shielding shut down lateral movement
Domain compromise accelerates fast. Predictive shielding slowed it down.
Credential theft
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Tailored AI insights from Microsoft Security Copilot
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Dissecting Sapphire Sleet’s macOS intrusion from lure to compromise
The Microsoft Defender Security Research Team uncovered a sophisticated macOS intrusion campaign attributed to the North Korean threat actor Sapphire Sleet that abuses user driven execution and social engineering to bypass macOS security protections and steal credentials, cryptocurrency assets, and sensitive data. -
When tax season becomes cyberattack season: Phishing and malware campaigns using tax-related lures
During tax season, threat actors reliably take advantage of the urgency and familiarity of time-sensitive emails, including refund notices, payroll forms, filing reminders, and requests from tax professionals, to push malicious attachments, links, or QR codes. -
Storm-2561 uses SEO poisoning to distribute fake VPN clients for credential theft
Storm-2561 uses SEO poisoning to push fake VPN downloads that install signed trojans and steal VPN credentials. Go beyond data protection with Microsoft Purview
Govern, protect, and manage all of your data with Microsoft Purview, comprehensive solutions to help give you better visibility and control.
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Defending against evolving identity attack techniques
Threat actors continue to develop and leverage various techniques that aim to compromise cloud identities. -
Lumma Stealer: Breaking down the delivery techniques and capabilities of a prolific infostealer
Over the past year, Microsoft Threat Intelligence observed the persistent growth and operational sophistication of Lumma Stealer, an info-stealing malware used by multiple financially motivated threat actors to target various industries. -
Threat actors misuse Node.js to deliver malware and other malicious payloads
Since October 2024, Microsoft Defender Experts has observed and helped multiple customers address campaigns leveraging Node. -
Threat actors leverage tax season to deploy tax-themed phishing campaigns
As Tax Day approaches in the United States on April 15, Microsoft has detected several tax-themed phishing campaigns employing various tactics. Streamline privacy management with Microsoft Priva
Protect and govern personal information, reduce privacy risks, and manage subject rights requests at scale with Microsoft Priva privacy risk management solutions.
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Phishing campaign impersonates Booking.com, delivers a suite of credential-stealing malware
Microsoft Threat Intelligence identified a phishing campaign that impersonates online travel agency Booking. -
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. -
Frequent freeloader part II: Russian actor Secret Blizzard using tools of other groups to attack Ukraine
Since January 2024, Microsoft has observed Secret Blizzard using the tools or infrastructure of other threat groups to attack targets in Ukraine and download its custom backdoors Tavdig and KazuarV2. -
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.
