Security vendor · Email security
Mimecast
CISA’s Known Exploited Vulnerabilities catalog, version 2026.11.06 released November 6, 2026, lists no entry under the name Mimecast. 2 Daily CISO items name the company, listed below.
Updated
Directory record
- Website
- www.mimecast.com
- Categories
- Email security (primary), Email authentication and DMARC, Collaboration app security, Insider risk management
- Headquarters
- London, United Kingdom
- Founded
- 2003
- Ownership
- Owned by Permira since 2022
- Company record
- Mimecast on CISO Tribune
Directory data as of November 8, 2026. What the company sells, and the source for every fact, is on its CISO Tribune page.
On Daily CISO, newest first
Weekly archive · Sep 1 – Sep 7, 2025
Mimecast, D-Wave Quantum Name New CISOsWeekly archive · Aug 25 – Aug 31, 2025
Mimecast Names Leslie Nielsen Chief Information Security Officer
Sources
- CISO Tribune, vendor directory record for Mimecast, published November 8, 2026