security tools for mysql
Here are a few starting points (and I don't have answers to everything).
Disclosure: I suggest a couple tools that were written by myself (and of course used in production).


Consider this login audit plugin (open sourced, find in GitHub). I developed &amp; compiled in on Linux, you will have to find your way on Windows. This plugin will log any login attempt (successful or failed) onto your server.


We use the above to audit any login on any of our servers -- using logstash to aggregate all our logs, and kibana to view/query it. Likewise, you can query this log and send alerts to graphite / query by Nagios -- I don not know what bests suits Windows.


Consider common_schema's security_audit. This will generate a report on bad security settings (duplicate passwords, excessive privileges etc.). It does not do any steganography.
Check out GreenSQL - I never tried it myself. It's a proxy sittting between your clients and your MySQL server, that can analyse and block queries on the fly.
Check out MariaDB security enhancements, e.g. role management. Available for Windows.