See how Microsoft Defender detects and disrupts AI-themed phishing, malware, and multi-stage attacks across the attack chain.

Microsoft examines an AI-assisted business email compromise campaign that used executive impersonation and fake invoices to ...

Microsoft introduces the Cloud Web Applications Threat Matrix, a MITRE ATT&CK-aligned framework that helps defenders ...

Join Microsoft at ESPC 2026 in Amsterdam to explore Microsoft 365 Copilot, agents, AI, and digital transformation.

Passkey-themed social engineering is being used to compromise identities and enable broader cloud attacks. Learn how threat actors establish MFA persistence, abuse Microsoft Graph for reconnaissance, ...

Worldwide Software Platforms for National Civilian Government AI-Enabled Case Management 2026 Vendor Assessment.

Explore how Microsoft AI helps media organizations transform content creation, audience engagement, and monetization with ...

Build full-stack business apps through conversation in Copilot Cowork and Copilot Studio, grounded in enterprise data.

Microsoft continually updates security intelligence in antimalware products to cover the latest threats and to constantly tweak detection logic, enhancing the ability of Microsoft Defender Antivirus ...

Create your best work on all your devices—from desktop to web—using the tools you need for home and business.

Explore the latest from MSRC, including security program updates, policy changes, technical research, and perspectives from the people helping protect customers across Microsoft. The blog brings ...

Microsoft Teams for Education は、共同作業と学習を充実させる、強力な学校向けコミュニケーション アプリです。ビデオでの共同作業、チャット、課題、クラス資料、ノートの機能がすべて ...