SAPSecurity Guide for IBMi
Starting with Release 7.10, a new user concept was introduced and replaced the classic user concept. Only the new user concept is described in this guide. However, for downward compatibility the classic user concept is still supported. For more information about the classic user concept, see the SAPNetWeaver Security Guide for 7.0 in the SAPLibrary at:http://help.sap.com→ SAPNetWeaver 7.0 (2004s) → English → SAPNetWeaver Library → SAPNetWeaver Security Guide
The IBM DB2 for i database is tightly integrated into the operating system. Therefore the database does not have its own security features but shares the security concept of the operating system. The information in this security guide is valid for both the IBM i operating system and the IBM DB2 for i database.
You need to take the measures described here on IBMi: