The court held that a plaintiff asserting a tortious interference claim involving an atwill contract must plead an independently wrongful act. California courts have long recognized causes of action for tortious interference with contract and tortious interference with prospective economic advantage.If the defendant was a competitor regarding the business involved in the contract, his interference with the contract may not be improper. Both California contract law and tort law allow for legal action when a third party wrongfully interferes with a contract or ongoing business relationship. A type of unfair business practice that occurs when someone intentionally interferes with an established business relationship using unlawful or wrongful means. A cause of action exists for negligent interference with another's prospective business advantage if the defendant acts unreasonably and wrongfully. This blog talks about the Cal jury instructions and what a Plaintiff has to prove to meet their "burden of proof" in a civil case. Wrongful or tortious interference with contracts happens when a thirdparty intentionally causes a contracting party to commit a breach of contract. Instead, your remedy in a case of tortious interference lies in your state's contract and tort laws. They both refer to a wrongful, intentional interference with the possession of someone's personal property.