What a Year of Microsoft Defender Data Reveals About Email Security Threats
What a Year of Microsoft Defender Data Reveals About Email Security Threats Email remains the primary vector for cyberattacks, but the tactics attackers use shift constantly. In June 2026, Microsoft published a detailed benchmark of email security threats observed over the prior year, drawing on telemetry from Defender for Office 365. The report offers a data-driven look at what’s actually hitting inboxes—and what’s getting blocked. While the numbers come from Microsoft’s ecosystem, the patterns are relevant to anyone who uses email. ...