Preparing governments for an era of interconnected cyber risk

According to this year’s Microsoft Digital Defense Report, government agencies and services were the sector most impacted by cyber threats in 2026, accounting for 27% of observed activity, up from 17% in 2025. Governments are also the most frequently targeted sectors for nation-state activity. Th...

The hidden network: Inside the phishing infrastructure ecosystem powering global cybercrime

In this article 1. Uncovering the shadow world of a phishing kit ecosystem 2. Storm-3119: YAM Store, the power broker 3. Storm-2990: The Iron Man System phishing kit 4. Downstream activity from Storm-2990 phishing kits 5. Mitigation and protection guidance 6. Microsoft Defender detections Over th...

Phishing Abuses RMM Tools for Persistent Access

In this article 1. Attack chain overview 2. Mitigation and protection guidance 3. Learn More In July 2026, Microsoft Defender Experts observed phishing campaigns targeting organizations across multiple industries that distributed a masqueraded MSP360 Remote Monitoring and Management RMM installer...