95%
95% -- malicious email share of inbound traffic for Yahoo (mailbox provider) (2024)
About 95% of the email Yahoo receives on any given day is malicious content (phishing, malware, etc.) that is rejected before being accepted onto servers.
- Approximation ('about 95%')
- Relayed by Lauren Meyer citing Clea Moore (Yahoo representative)
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Quoted on the Email Geeks podcast from Clea Moore (Yahoo representative): approximately 95% of email Yahoo receives on a given day is malicious (phishing, malware) and never accepted into their servers; only the remaining ~5% is accepted and must be sorted between trusted and untrusted senders. Podcast recording coincides with the iOS 18 launch and the 2024 sender guidelines discussion.
<blockquote cite="https://lighthousedata.io/data/yahoo-inbound-email-95-percent-malicious" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>95%</strong> -- malicious email share of inbound traffic for Yahoo (mailbox provider)<br><small>Source: Yahoo (2024) · <a href="https://lighthousedata.io/data/yahoo-inbound-email-95-percent-malicious" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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