2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/215789Primordial black holes (PBHs) are known to be produced from collapsing cosmic defects such as domain walls and strings. In this paper we show how PBHs are produced in monopole-string networks.19 pages, 2 figures, accepted for publication in Astroparticle PhysicsHigh Energy Physics - PhenomenologyAstrophysicsHigh Energy Physics - Theorytext