You can modify these predefined dictionaries or create custom dictionaries for content not covered by them. For example, you can create custom dictionaries that trigger based on specific patterns and phrases, or trigger based on exact data matching. To learn more, see Editing Predefined DLP Dictionaries and Adding Custom DLP Dictionaries.
Any combination of predefined and custom dictionaries can be added to a DLP engine, which is what you must reference when creating DLP policies. To learn more, see About DLP Engines.