Although product failures cause marketers and consumers to suffer substantial damages and losses, failures are often beyond control. Building on defensive attribution literature, this study experimentally investigates how locus of causality and outcome severity of product failure interactively shape consumers’ brand evaluations. Findings show that following a product failure experience, consumers respond with the lowest brand evaluation for a brand-caused failure, a higher brand evaluation for a natural disaster-caused failure, and the highest brand evaluation for a consumer-caused failure. Outcome severity moderates the effects; however, when the failure causes severe outcomes, positive brand evaluation deteriorates for the consumer-caused failure but not for the brand- and natural disaster-caused failure. In addition, brand-blame attribution mediates the relationships.