2025 healthcare email security report

43.3% of healthcare email breaches involved Microsoft 365.

IT leaders estimate only 5% of known phishing attacks are reported by healthcare employees to their security teams.

There was a 264% increased surge of ransomware attacks on healthcare organizations.

Barracuda, Mimecast, and Proofpoint account for 26.7% of healthcare email breaches in 2024.

1.1% of healthcare organizations analyzed had a 'Low Risk' email security posture.

68.8% of healthcare organizations analyzed had a 'Medium Risk' email security posture.

31.1% of healthcare organizations analyzed had a 'High Risk' email security posture.