What Microsoft's New Email Security Data Reveals About Today's Biggest Threats

What Microsoft’s New Email Security Data Reveals About Today’s Biggest Threats Email remains one of the most exploited entry points for cyberattacks. Phishing alone accounted for more than 90% of data breaches last year, according to multiple industry reports. Microsoft recently published the results of a year-long benchmark on email security effectiveness—drawn from real-world telemetry across its Defender for Office 365 customer base. The findings offer a clear picture of current threats and, more importantly, which defences actually stop them. ...

June 22, 2026 · 4 min · BriefArc Desk

What Microsoft's email security benchmark reveals about protecting your inbox

What Microsoft’s email security benchmark reveals about protecting your inbox If you rely on Microsoft 365 for your business or personal email, you probably assume the built-in security tools are doing their job. And they are — but only up to a point. Microsoft recently published a year-long benchmark study of email threats detected by Microsoft Defender for Office 365, covering data from June 2025 through June 2026. The report gives a realistic picture of what attackers are doing and how well the default protections hold up. ...

June 22, 2026 · 4 min · BriefArc Desk