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Breach of Confidence:
Improper Use of Business Information Including Trade Secrets
Last Updated: August 28 2026
Question: What are the elements needed to prove breach of confidence for misused business secrets in Ontario?
Answer: To prove breach of confidence, Wennekers.Legal™ will generally assess whether the information had the necessary quality of confidence, whether it was communicated in circumstances importing an obligation of confidence, and whether the recipient misused it to the detriment of the disclosing party, as reflected in Lac Minerals Ltd. v. International Corona Resources Ltd., [1989] 2 S.C.R. 574. If you suspect someone unlawfully used proprietary recipes, software, processes, or other business secrets, a professional legal services review can help you understand available remedies and next steps without delay. Reach Wennekers.Legal™ at (647) 701-1162 to discuss your situation in Ontario.
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Misused Business Secrets
The success of a business may rely heavily upon secret recipes, proprietary software, unique systems, and customized processes; and accordingly, information relating to these key aspects may be highly valued with misuse of such confidential information quite harmful. In tort law, breach of confidence involves the wrongful use of information that was openly shared with the party that subsequently misuses the secretive information; and in this respect, breach of confidence differs from theft of trade secrets which would involve an element of misappropriation.
Note: Please contact Wennekers.Legal™ by phone at: (647) 701-1162 to discuss any specific questions that you may have.
The Law
As per the case of Lac Minerals Ltd. v. International Corona Resources Ltd., [1989] 2 S.C.R. 574, a Supreme Court decision, the elements that must be proven within a breach of confidence case are:
- The information conveyed was confidential;
- The information was communicated in confidence; and
- The information was misused by the party to whom it was communicated.
Specifically, per Lac Minerals Ltd., the Supreme Court said:
I can deal quite briefly with the breach of confidence issue. I have already indicated that Lac breached a duty of confidence owed to Corona. The test for whether there has been a breach of confidence is not seriously disputed by the parties. It consists in establishing three elements: that the information conveyed was confidential, that it was communicated in confidence, and that it was misused by the party to whom it was communicated. In Coco v. A. N. Clark (Engineers) Ltd., [1969] R.P.C. 41 (Ch.), Megarry J. (as he then was) put it as follows at p. 47:
In my judgment, three elements are normally required if, apart from contract, a case of breach of confidence is to succeed. First, the information itself, in the words of Lord Greene, M.R. in the Saltman case on page 215, must "have the necessary quality of confidence about it." Secondly, that information must have been imparted in circumstances importing an obligation of confidence. Thirdly, there must be an unauthorized use of that information to the detriment of the party communicating it . . .
As a particularly interesting example case, Cadbury Schweppes Inc. v. FBI Foods Ltd., [1999] 1 S.C.R. 142 involved the licensing of the recipe for Clamato juice by Duffy-Mott (a company later acquired by Cadbury Schweppes Inc.) to Caesar Canning who then contracted production to FBI Foods Ltd. After Cadbury Schweppes acquired Duffy-Mott, Caesar Canning was notified of termination of the licensing agreement; however, FBI, who later acquired assets of Caesar Canning, made use of the recipe despite a lack of authorization to do so.
Conclusion
Improper use of secretive information may constitute as the tort of breach of confidence where information was confidential, information was communicated within a confidential context, and the information was then misused by the party that received the communication.
NOTE: A substantial amount of online searches for “lawyers near me” or “best lawyer in” typically indicate a demand for swift and effective legal assistance as opposed to a particular professional designation. In Ontario, the same Law Society that governs lawyers also regulates licensed paralegals, granting them the authority to represent clients in specific litigation cases. Central to this role are advocacy, legal analysis, and procedural expertise. Wennekers.Legal™ provides legal support within its licensed framework, focusing on strategic positioning, evidence preparation, and compelling advocacy aimed at securing efficient and advantageous outcomes for clients.