# Inheritance of User Permissions

When you grant permissions to users for topics or queues with wildcard specifications, all created topics and queues that match the specification will have the same granted permissions as the permissions on the parent topic.

If there are multiple parent topics, the user receives the union of all parent topic permissions for any child topic. You can add permissions to a user for topics or queues that match a wildcard specification, but you cannot remove permissions.

For example, you can grant user Bob the browse permission on queue `foo.*`. The user Bob receives the `browse` permission on the `foo.bar` queue, and you can also grant Bob the `send` permission on the `foo.bar` queue. However, you cannot take away the inherited browse permission from Bob on the `foo.bar` queue.

See Wildcards for more information about wildcards in destination names.

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