For this special issue of the Revue générale de droit on the legal protection of seniors, a professor of financial services law and a civil liability professor decided to work together to explore some aspects of protection that are at the junction of their respective fields. Specifically, they examined the impact of the victim’s age and vulnerability in the assessment of the victim’s share of responsibility for the injury sustained in the context of a civil liability action against a provider of financial services. The notion of “share of responsibility” refers to the concepts of fault by the victim, acceptance of risk, mitigation of injury, novus actus interveniens (“breaking the chain”) and ratification of the actions of the financial services provider. Using several jurisprudential examples, the authors seek to determine whether the age and vulnerability of the victim encourage the courts to take a more protective attitude, in other words whether the courts may excuse a victim’s wrongful conduct and grant compensation without taking into account the victim’s share of responsibility, if any, for the injury sustained.