REPORT
2025 healthcare email security report
Key insights from 180 email-related healthcare breaches and actionable steps to protect your organization.
REPORT
2025 healthcare email security report
Key insights from 180 email-related healthcare breaches and actionable steps to protect your organization.
Top takeaways
Email security failures are accelerating in healthcare—and widely adopted platforms are falling short. Our mid-year analysis reveals why breaches keep happening and what it takes to stop them.
107 email-related breaches occurred so far in 2025, compared to 180 overall last year
52% of healthcare breaches were on Microsoft 365, up from 43% in 2024
41% of orgs were assessed as high risk, up from 31% last year
79% of breached domains had ineffective DMARC protection, a major jump from 65% in 2024
