URL Category and Reputation Changes: Effect on Events

When URL categories change, events that the system processed before the category change will be associated with their original category names and will be labeled with Legacy. Events that the system processed after the category change will be associated with the new categories.

Older, legacy events will age out of the system over time.

If a URL does not have a reputation at the time it was processed, the URL Reputation column in the event viewer will be empty.