K2 Security Label Updater can be used to update credentials of datasources in security labels of type (SourceCode.Security.Providers.K2UMProvider.K2UMProvider). The application must be copied in the K2 host server "bin" directory so that it can read the K2 server config file and get the SQL server connection string. All available security labels of K2UMProvider type and all domains for each one are displayed and can be updated individually.