Simply add roles and control permissions to allow users to access only necessary data while protecting it from unauthorized access. Make sensitive data not readable use encryption for 2 way (to be able to decrept it), and hashing for 1 way like passwords

Having control over database security is a very fine line between being able to deliver necessary information and the user seeing information that does not correspond to them. When designing a database, it is important to have a clear structure of the information that will be displayed, generated and consumed. In this way, specific roles can be defined for each function as well as being able to generate access tactics such as Active Directory groups, service users or users based on permissions by tables and tasks. It is always important to maintain audits for any adjustments that must be made to said roles.

Balancing data accessibility and security in database design involves structuring permissions and encryption carefully. Use role-based access control (RBAC) to limit data visibility based on user roles while ensuring essential data is easily accessible. Encrypt sensitive data both at rest and in transit. Regularly review access policies and utilize auditing to monitor data use, adjusting as security needs evolve.

Set up user groups and assign permissions based on the least privilege principle. Implement row-level security and column masking. Regularly audit and monitor access, and secure the network (i.e. with firewalls and VPNs)

Data encryption should be in place and setup user Groups to handle access to the database. Use the group to assign permissions to the group. Grant least permissions to DB unless required.

Classify & Segment the data based on Sensitivity or nature of usage. Have a role based Access control on Db adhering to least privilege principle. MFAs provide an added advantage for handling sensitive data. Encrypt Data at Rest or in transit using robust algorithms. For sensitive data have an encryption within the database . Enable audit trail logging and set up alerts for any suspicious activities. Conduct regular audits of database and access permissions . Encrypt the data store back ups. Get rid of unnecessary services and keep software updated. Org should periodically spend on Penetration testing ,Vulnerability scanning etc . Last but not the least adhere to all Industry specific regulations and keep your users also well educated.

By Following CIA(Confidentiality integrity and availability) triad we can make data accessible to the Users and making security in database design of the organization.

Balancing accessibility and security requires aligning user needs with robust safeguards. Classify data by sensitivity, enforce Role-Based Access Control (RBAC), and use Multi-Factor Authentication. Encrypt data at rest (AES-256) and in transit (TLS/SSL). Optimize performance with indexing, caching, and replication while providing user-friendly APIs. Partition data logically and separate environments to limit exposure. Enable logging, anomaly detection, and regular audits. Secure backups with encryption and minimize vulnerabilities by disabling unnecessary features. Regularly review policies, apply updates, and conduct penetration tests. This ensures efficient access and strong security.