Abstract: Following the intriguing hints of deviations from the Standard Model in rare B meson decays, searches for rare and forbidden decays of charm hadrons become a hot topic again. We present recent results on Flavour Changing Neutral Current D<sup>0→μ<sup>+</sup></sup>μ<sup>−, D<sup>0</sup>→μ<sup>+μ<sup>−</sup></sup>π<sup>+</sup>π<sup>−, D<sup>±(s)​→</sup>π<sup>±</sup>μ<sup>+μ<sup>− and LFV D<sup>±(s)​→</sup>π<sup>∓μ<sup>±μ<sup>± obtained at LHCb.