When we are talking about database security, it encompasses different modules of different areas. It is a very vast topic because, with databases, we need need to secure the whole ecosystem, not just the database node. The figure below shows the major breakdown of the parts which need to be secure. It is clearly evident [&]

https://www.percona.com/blog/2021/01/04/postgresql-database-security-what-you-need-to-know/