Not sure about on-point. It wouldn't necessarily be an instruction from Hannity to conceal his identity. It's likely Cohen himself having a policy of not disclosing his clients to anyone. It's usual practice for lawyers to closely protect their clients interests, and Cohen probably knew that it would adversely affect Hannity if his identity as a client was revealed. So it makes sense that Cohen himself would want to conceal that, independent of any specific request from Hannity. Still, Hannity defending him in person, on air, and Cohen sitting there acting like he doesn't know exactly how unethical it is....it's disgusting behavior regardless.