Exotic Higgs decays at ATLAS

Slides for the presentation at the Dark Interactions workshop at BNL (June 11-13. 2014). A large class of simplified and complete models gives rise to peculiar exotic patterns in either decays or production of the Higgs boson, patterns that the ATLAS experiment is exploring with several dedicated analysis. The status of such searches in the data collected during the Run 1 of LHC, at center of mass energies of 7 and 8 TeV, will be reviewed.