Abstract: The Hawking radiation of photons from primordial black holes can be detected in future gamma-ray telescopes if PBHs constitute even a small fraction of dark matter. PBHs can likewise radiate new particles, which is particularly interesting when these particles are largely secluded from the Standard Model sector and would otherwise be difficult to access. In this talk, I will describe how such dark sector particles can be probed through the spectrum of Hawking radiation. Event recording: