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Databases hold an organisation's most valuable asset, which makes them a target. These practices form the baseline checklist for any MySQL deployment holding real data.
Key Points
- Run mysql_secure_installation; remove anonymous users and the test database
- Enforce least privilege — applications never connect as root
- Prevent SQL injection with parameterised queries in all application code
- Encrypt connections with SSL/TLS, especially over networks
- Restrict network exposure: bind-address, firewalls, no public 3306
- Patch regularly, back up regularly, and enable logging for audits