  We investigate the role of boundary conditions in gauge theories in AdS4. The
presence of the boundary can break the gauge symmetry consistently with AdS4
isometries. We show that, as a consequence, the gauge bosons associated to the
broken symmetries become massive at one loop. In particular chiral gauge
theories such us the Standard Model are necessarily massive in AdS4. We briefly
discuss similarities with the Schwinger model and implications for CFTs in
three dimensions.
