The company claims MAI-Cyber-1-Flash tops Anthropic’s Mythos and OpenAI’s GPT-5.6 Sol in CyberGym testing.
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Microsoft Patches Record 622 Vulnerabilities, Including Two Exploited Zero-Days
Two flaws in Active Directory and SharePoint Server have been exploited as zero-days, and a BitLocker bug was publicly disclosed.
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Microsoft Adds New Teams Controls to Block Unauthorized AI Bots From Meetings
Microsoft’s new Teams admin policy requires organizer approval for external AI bots, giving organizations greater visibility and control over automated participants in sensitive meetings.
The post Microsoft Adds New Teams Controls to Block Unauthorized AI Bots From Meetings appeared first on SecurityWeek.
Microsoft Patches Exploited Exchange Server Vulnerability
The company warned about zero-day attacks exploiting the Exchange Server vulnerability CVE-2026-42897 on May 14.
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Microsoft Tries to Calm Legal Threat Fears After Zero-Day Disclosure Backlash
Microsoft responds to backlash over its threats of legal action against researchers who publicly disclose zero-day vulnerabilities.
The post Microsoft Tries to Calm Legal Threat Fears After Zero-Day Disclosure Backlash appeared first on SecurityWeek.
Exclusive: How One Line of Code Put Billions of Microsoft Android App Downloads at Risk
A simple development setting bypassed protections designed to prevent unauthorized Android apps from accessing Microsoft account tokens, exposing billions of installations.
The post Exclusive: How One Line of Code Put Billions of Microsoft Android App Downloads at Risk appeared first on SecurityWeek.
Microsoft Patches Exploited UnDefend and RedSun Defender Zero-Days
The bugs could be exploited to elevate privileges to System or create a denial-of-service (DoS) condition.
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Microsoft Disrupts Malware-Signing Service Run by ‘Fox Tempest’
Fox Tempest provides a service that cybercriminals use to distribute ransomware and other malware disguised as legitimate software.
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Microsoft Patches 137 Vulnerabilities
Fresh security updates resolve critical flaws in Azure, Windows, Dynamics 365, and the SSO Plugin for Jira & Confluence.
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Microsoft Warns of Sophisticated Phishing Campaign Targeting US Organizations
The malicious emails claim to contain a conduct report and lure victims to a Microsoft phishing website that leverages AitM.
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