  If primordial black holes with masses of $10^{25}\,\mbox{g}\gtrsim m \gtrsim
10^{17}\,\mbox{g}$ constitute a non-negligible fraction of the galactic
dark-matter haloes, their existence should have observable consequences: they
necessarily collide with galactic neutron stars, nest in their centers and
accrete the dense matter, eventually converting them to neutron-star mass black
holes while releasing the neutron-star magnetic field energy. Such processes
may explain the fast radio bursts phenomenology, in particular their
millisecond durations, large luminosities ${\sim}10^{43}$ erg/s, high rate of
occurrence $\gtrsim 1000/\mbox{day}$, as well as high brightness temperatures,
polarized emission and Faraday rotation. Longer than the dynamical timescale of
the Bondi-like accretion for light primordial black holes allows for the
repeating fast radio bursts. This explanation follows naturally from (assumed)
existence of the dark matter primordial black holes and requires no additional
unusual phenomena, in particular no unacceptably large magnetic fields of
neutron stars. In our model, the observed rate of fast radio bursts throughout
the Universe follows from the presently known number of neutron stars in the
Galaxy.
