Review database user permissions and restrict to least privilege

Reviewing database user permissions and restricting each to least privilege means every database credential your application uses has only the specific access it genuinely needs, not broad administrative rights used routinely for simple queries.

A database credential with full administrative rights is far more dangerous if compromised than one restricted to only what it genuinely needs, least privilege limits the real damage any single compromised credential can cause.

How to do it

1. 1
   Review every database user account currently in use

   Application connections, admin access, any service with database credentials.
2. 2
   Identify what each genuinely needs access to

   Which specific tables and actions are actually required for that account real purpose.
3. 3
   Restrict each account to that minimum necessary access

   Rather than broad administrative rights used for convenience.
4. 4
   Test thoroughly after restricting

   Confirm your application still functions correctly with the narrower permissions.