How to improve database security?

A technology has been developed to control user interaction with the RDBMS server.
The pgProxy is a test application which allows to track and / or modify all passing requests and returned data.

This development opens up broad opportunities for further enhancements:

• Advanced access control and security for selected fields
• Real-Time Activity Monitoring
• Ability to prevent SQL injection
• Arbitrary processing of transmitted data (for example, depersonalization of PDN)
• The ability to disguise data to prevent leaks
• Separate independent incident investigation journal
• Much more