A default search filter applied to queries for a given group in LogScale. Query prefixes automatically restrict what data members of a group can access by prepending a filter condition to every query they run. This provides an automated way to enforce data access boundaries without requiring users to manually include filtering conditions in their searches. Query prefixes are configured at the group level and cannot be used in conjunction with organization-owned queries, as organization-owned queries operate at the organization level rather than the group level.