What about data stored by HR department doesn't it too have a protocol for avoiding misuse.?

If the data is stored through HRIS them you have access control for specific users who handle data. If the data is stored in excel still it can be passcode protected and can be restricted access based on the need

definately there should be a protocal in retrieving and storing of data. information has played an important role in the growth of the organization. the data stored helps organization in decission making. If data is well stored the organization can use to clear staff benefits when they are to the organization

Every HR staff who access the data has specific rights to each area. So the data is secured.