  Recently, a number of novel scenarios for primordial black hole (PBH)
formation have been discovered. Some of them require very minimal new physics,
some others require no new ingredients besides those already present in
commonly considered models, such as supersymmetry. At the same time, new
strategies have emerged for detection of PBHs. For example, an observation of
an orphan kilonova unaccompanied by the gravitational waves signal of merging
neutron stars, but associated with a fast radio burst, could be a smoking gun
of PBH dark matter. We review some new ideas for PBH formation and detection.
