  We demonstrate that the recently discovered triple-Q (3Q) magnetic structure,
when embedded in a magnet-superconductor hybrid (MSH) system, gives rise to the
emergence of topological superconductivity. We investigate the structure of
chiral Majorana edge modes at domain walls, and show that they can be
distinguished from trivial in-gap modes through the spatial distribution of the
induced supercurrents. Finally, we show that topological superconductivity in
3Q MSH systems is a robust phenomenon that does not depend on the relative
alignment of the magnetic and superconducting layers, or on the presence of
electronic degrees of freedom in the magnetic layer.
