Email Security
We've curated 41 cybersecurity statistics about Email security to help you understand how phishing attacks, malware, and advanced authentication practices are evolving in 2025, ensuring your communications remain safe from emerging threats.
Showing 1-20 of 41 results
100% of advanced email threats bypassed incumbent email security, including Microsoft E3/E5 and leading secure email gateways.
77% of advanced email attacks failed SPF, DKIM, or DMARC authentication yet still reached inboxes.
Approximately 3 million email addresses in the healthcare sector may be at risk of exposure to cyberattacks due to unverified email delivery practices.
DocuSign accounted for more than 20% of all advanced email attacks analyzed.
Approximately 45% of advanced email attacks showed indicators of AI assistance, projected to rise to 75–95% within the next 18 months
77% of advanced email attacks impersonated business-critical brands such as DocuSign, Microsoft, and Google.
Approximately 4.5% of outbound healthcare email connections were delivered to servers with expired or self-signed certificates.
68.8% of healthcare organizations analyzed had a 'Medium Risk' email security posture.
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.
31.1% of healthcare organizations analyzed had a 'High Risk' email security posture.
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.
64% of organizations fell victim to external attacks that exploited employees through email.
Email-related incidents increased by 57%.
42.72% of IT decision-makers at financial services firms reported that email security is currently fully or partially managed by an MSP or MSSP.
Only 42% of healthcare organizations have signed a Business Associate Agreement (BAA) covering any AI assistant used in email.
94% of healthcare organizations have begun updating security policies to address generative AI threats in email.
69% of healthcare IT leaders feel pressured to adopt AI faster than they can secure it.