IBM z14 includes pervasive encryption, tamper-responding key management and encrypted application program interfaces. 92 of the top 100 banks rely on the mainframe because of its speed, scale and security. IBM Security Guardium for z/OS provides detailed, granular, real-time activity monitoring capabilities. Data activity monitoring provides insights into access behavior for DB2, the information management system (IMS) and the file system. With the EUs General Data Protection Regulation (GDPR) set to take effect in 2018, the stakes are even higher.”]
Source: https://securityintelligence.com/mainframe-data-is-your-secret-sauce-a-recipe-for-data-protection/