Wider cover than given under a normal property insurance policy. Covers any loss or damage apart from exclusions stated in the policy.
A property policy expression now out of fashion. It was used to designate contracts that promised coverage against "all risks of direct physical loss" in contrast to forms that covered for specific, named perils. The word "all" came to be perceived as open to broader interpretation than insurers intended and it was dropped in favor of the promise to cover "risks of physical loss." See Named perils and also Open perils.
An extra layer of contents insurance offered by most insurance companies. All risks cover usually provides for, inter alia, accidental damage and loss of personal belongings whilst off the premises. It covers all risks except those specifically excluded.