 Cresto’s initial interest in skepticism arose under the influence of de Olaso, who supervised her B.A. thesis at the Universidad de Buenos (UBA). She later on pursued her M.A, M.Phil., and Ph.D. at Columbia University. Currently a researcher at CONICET and a professor at the Universidad Nacional de Tres de Febrero in Argentina, she works primarily in formal epistemology (on which see  Section 4).  In her first published papers, she critically examined both reliabilist and naturalistic anti-skeptical responses proposed in the literature, finding them unsatisfactory (Cresto 1996a, 1996b), but also put forward a reliabilist reply of her own to skepticism (Cresto 1997).