We propose a straightforward void-based rationale [1] for hydrogen embrittlement that effectively captures ductile fracture, hydrogen-induced loss of ductility, and most importantly, the ductile-to-brittle transition in fractography. This is solely based on the failure process of metallic materials with primary and secondary voids, without requiring any additional failure criteria. While the coupling effect of homogenously distributed secondary voids is well-documented, the novelty of our approach lies in the precise definition of an array of equally sized and spaced secondary voids in the ligament between primary voids, aligning with the hydrogen-enhanced localized plasticity (HELP) and hydrogen-enhanced strain-induced vacancies (HESIV) mechanisms. This approach allows for a well-controlled parametric study ranging from a few secondary voids to a large number, effectively representing an infinite number, which quantitatively depicts the full range of embrittlement as a function of secondary void size and naturally captures the brittle inter-ligament decohesion associated with an intrinsic lower bound of ductility when the secondary voids are sufficiently small. Counterintuitively, our results show that ductility reduction accelerates with a decrease in the secondary void volume fraction, and that smaller voids lead to greater material embrittlement. This represents an advancement in developing mechanism-based predictive models for hydrogen embrittlement.