  Sub-GeV Dark Matter particles upscattered by cosmic rays gain enough kinetic
energy to pass the thresholds of large volume detectors on Earth. We then use
public Super-Kamiokande and MiniBooNE data to derive a novel limit on the
scattering cross section of Dark Matter with electrons that extends down to
sub-keV masses, closing a previously allowed wide region of parameter space. We
finally discuss search strategies and prospects at existing and planned
neutrino facilities.
