  The hypothesis of dark matter interacting with the standard model uniquely
via the Higgs portal is severely challenged by experiments. However, if dark
matter is a fermion, the Higgs-portal interaction implies the presence of
mediators, which can change the phenomenology significantly. This article
discusses the impact of weakly-interacting mediators on the dark-matter relic
abundance, direct detection, and collider searches. At the LHC, a typical
signature of Higgs-portal fermion dark matter features soft leptons and missing
energy, similarly to gaugino production in models with supersymmetry. We
suggest to re-interpret existing gaugino searches in the context of
Higgs-portal models and to extend future searches to the broader class of dark
sectors with weakly-interacting fermions.
