- Oracle Database Firewall provides database security and monitoring capabilities to prevent unauthorized access and data loss. It uses white-list and black-list security policies to control database access and activity. - The firewall can block, substitute, alert on, or log SQL statements in real-time without impacting application performance. It also provides built-in and custom compliance reports. - The presentation discusses how the firewall protects against common threats like SQL injection and stolen credentials while maintaining transparency to applications.