Select Page
Diagram showing the multi-phase phishing attack chain

Evolved phishing: Device registration trick adds to phishers’ toolbox for victims without MFA

We have recently uncovered a large-scale, multi-phase campaign that adds a novel technique to traditional phishing tactics by joining an attacker-operated device to an organization’s network to further propagate the campaign. We observed that the second stage of the campaign ... continue reading

Destructive malware targeting Ukrainian organizations

Microsoft Threat Intelligence Center (MSTIC) has identified evidence of a destructive malware operation targeting multiple organizations in Ukraine. This malware first appeared on victim systems in Ukraine on January 13, 2022. Microsoft is aware of the ongoing geopolitical events in ... continue reading
Screenshot of the Security & Privacy pane on macOS

New macOS vulnerability, “powerdir,” could lead to unauthorized user data access

Following our discovery of the “Shrootless” vulnerability, Microsoft uncovered a new macOS vulnerability, “powerdir,” that could allow an attacker to bypass the operating system’s Transparency, Consent, and Control (TCC) technology, thereby gaining unauthorized access to a user’s protected data. We ... continue reading
Screenshot of Threat and Vulnerability Management

Guidance for preventing, detecting, and hunting for CVE-2021-44228 Log4j 2 exploitation

Microsoft’s unified threat intelligence team, comprising the Microsoft Threat Intelligence Center (MSTIC), Microsoft 365 Defender Threat Intelligence Team, RiskIQ, and the Microsoft Detection and Response Team (DART), among others, have been tracking threats taking advantage of CVE-2021-44228, a remote code ... continue reading