If so, you need SAP Universal ID. In a few months, SAP Universal ID will be the only option to login to SAP Community. Without it, you will lose your content and badges. If you have multiple accounts, use the Consolidation Tool to merge your content.
I know there is Row level security in HANA which can be controlled through Analytic Privileges , is there a direct way to implement Column Level security in SAP HANA ?