View all request except the one from one support group?

View all request except the one from one support group?

Is this possible? I know I can setup roles for every support group so they can only see their own or their groups requests but I would like do to the opposite. Allow all support groups to see all requests except the ones from one support group. There is too many downside for me to use the current role approach because my support groups work with one and another and need to see each others requests but one group in particular deals with sensitive requests that no one else should see but them.

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