  It is shown that the antiproton spectrum reported by the AMS02 collaboration
can be accounted for by dark matter (DM) decay if the residence time in the
Galactic halo is of order 90 Myr. The DM lifetime assumed, $ 5 \cdot 10^{27}$ s
for DM particle mass of 3 TeV, is shown to be consistent with the constraints
of diffuse gamma ray background. Alternative sources of antiprotons, such as
those from compact objects, are shown to be strongly constrained by neutrino
astronomy and therefore unlikely candidates.
