Email Security

What Microsoft’s New Email Security Data Means for Your Inbox Introduction If you use Outlook or Microsoft 365 for email, you’re relying on Microsoft Defender to catch threats before they reach you. Recently, Microsoft released a year’s worth of email security benchmarking data, offering a rare look at the volume and types of attacks that hit inboxes daily. The report itself is understandably promotional, but the trends it describes are consistent with what security researchers have observed independently. More importantly, the findings point to a handful of settings and habits that can meaningfully reduce your risk—no IT degree required. ...

Microsoft’s Email Security Benchmark: What a Year of Data Reveals About Your Inbox Threats Email remains the most common entry point for cyber attacks, and Microsoft’s Defender for Office 365 processes billions of messages each month. Earlier this year, the company published its first email security benchmark, based on a year of real-world telemetry from across its customer base. The report isn’t just a collection of statistics—it’s a diagnostic tool that can help any organization spot weak points in its email defenses. ...

What Microsoft’s Year of Email Security Data Reveals About Today’s Biggest Threats Email remains one of the most common attack vectors for cybercriminals, and understanding the current threat landscape is essential for anyone who relies on digital communication—which is nearly everyone. Microsoft recently published a year’s worth of telemetry from Microsoft Defender for Office 365, covering June 2025 to June 2026. The report offers concrete benchmarks on phishing, spam, malware detection, and other email security metrics. Here’s what the data shows and how you can use it to strengthen your own defenses. ...

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. ...

What One Year of Microsoft Defender Data Reveals About Email Threats Microsoft published its latest email security benchmark report in June 2026, based on telemetry collected across its Defender for Office 365 user base over the preceding twelve months. The report offers a snapshot of the volume and types of email-borne attacks that the platform detected and blocked, and it highlights trends that anyone using Microsoft 365 should be aware of. This article summarizes the key findings and translates them into practical steps you can take to improve your own email security. ...

What Microsoft’s Year of Email Security Data Reveals About Today’s Threats Email remains the most common entry point for cyberattacks. That’s not a new claim, but the scale of the problem is easy to underestimate. Microsoft recently published a comprehensive year-long benchmark of email security threats detected by Microsoft Defender for Office 365. The data covers mid-2025 through mid-2026 and gives us a rare, large-scale look at what attackers are actually doing and how well defenses hold up. ...

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. ...

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. ...

What Microsoft’s email security data reveals about today’s biggest threats If you administer a Microsoft 365 tenant or run a small business that relies on Exchange Online, you’ve probably wondered how effective the built-in email protection really is. Microsoft recently published a year’s worth of benchmark data from Defender for Office 365, and the numbers offer a grounded look at what threats are actually getting through — and where the filters are holding. ...

What Microsoft’s Email Security Data Reveals About Today’s Biggest Phishing Threats Email remains the most common entry point for cyberattacks, and a new benchmarking report from Microsoft—based on a full year of data from Defender for Office 365—gives us a clearer picture of how attackers are adapting. While the exact numbers are still being parsed, the trends are clear enough to warrant a closer look at how we protect our inboxes. ...