Access control through multilevel security

Multilevel security, also known as label-based access control, allows you to classify objects and users with security labels. The security labels are based on hierarchical security levels and non-hierarchical security categories.

Db2 multilevel security solution uses the multilevel security feature in the z/OS® operating system. It prevents unauthorized users from accessing information at a higher classification than their authorization. It also prevents users from declassifying information.

Using multilevel security with row-level granularity, you can define strong security for Db2 objects and perform security checks, including row-level security checks. Row-level security checks allow you to control which users have authorization to view, modify, or perform other actions on specific rows of data.