  Rare flavour changing neutral current decays of strange, charm and beauty
hadrons have been instrumental in building up a picture of flavour in the
Standard Model. Increasingly precise measurements of these decays allow to
search for deviations from predictions of the Standard Model that would be
associated to contributions from new particles that might arise in extensions
of the Standard Model. In this summary, an overview of recent experimental
results and theoretical predictions is given. The new physics sensitivity and
prospects for the different observables is also addressed.
