MariaDB SkySQL’s comprehensive security capabilities have earned ISO/IEC 27001:2013 certification. SkySQL was built with a security-first architecture and leverages best-in-class security features. SkyDBAs perform personalized and proactive database operations at a fraction of the cost of a full-time DBA. The ISO certification applies to every facet of SkySQL including the SkyDBA support service, which is available 24..7, and helps customers meet GDPR requirements.
Source: https://www.helpnetsecurity.com/2021/02/01/mariadb-iso-iec-270012013/