MySQL Brute-Force Protection
According to Wikipedia "MySQL is the world's second most widely used relational database management system (RDBMS) and most widely used open-source RDBMS"
The flip side of this popularity is high number of various brute-force tools that are easily available on the Internet.
Your MySQL Server might be at risk if it allows remote connections. Just look at the Application event log, there should be the entries like below:
Traces of MySQL brute-force attempts in Application event log
You may be surprised, but this is only the tip of the iceberg, enable general logging for your MySQL server and wait a couple of hours.
Most likely the general log will look like below:
MySQL brute-force attempts in General Query Log
These failed connection attempts are dictionary based brute-force attacks which may affect the performance and security of your server.
RdpGuard is the brute-force protection software that helps you protect your MySQL Server from password guessing brute-force attacks.
For Windows Server 2003, Vista, 7, 8, 2008, 2012
How to Enable and Configure MySQL Brute-Force Protection