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Breach of Confidence:
Improper Use of Business Information Including Trade Secrets
Last Updated: June 12 2026
Question: Can a paralegal in Ontario help me sue a former employee or competitor for misusing my confidential business information?
Answer: Civil Litigations Paralegal Services provides Paralegal support across Ontario for breach of confidence claims involving misused trade secrets like recipes, proprietary software, customer lists, and internal processes, helping you document confidentiality, show the information was shared in confidence, and pursue practical remedies such as injunctions or damages, including using the test from Lac Minerals Ltd. v. International Corona Resources Ltd., [1989] 2 S.C.R. 574. Call (416) 229-1479 to discuss fast next steps to protect your business and limit further harm.
Misused Business Secrets
In business, the product recipes, proprietary software, systems and processes, among many other things, may be highly valuable and the misuse of such confidential information may result in considerable harm. The field of tort law includes a cause of action, meaning right to bring a lawsuit, known as breach of confidence which relates to the improper use of information by a person or other business with whom the confidential information was previously shared. Interestingly, where breach of confidence involves information that was previously shared, the wrongfulness arises from improper use of the information rather than theft of the information.
The Law
Per the Supreme Court in the case of Lac Minerals Ltd. v. International Corona Resources Ltd., [1989] 2 S.C.R. 574, the elements requiring proof so to constitute 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 significant array of queries like “lawyers near me” or “best lawyer in” frequently indicates a desire for prompt and effective legal support as opposed to a particular designation. In Ontario, paralegals who hold a license are governed by the same Law Society that regulates lawyers and are empowered to represent clients in specific litigation areas. The core elements of this role include advocacy, legal insight, and procedural expertise. Civil Litigations Paralegal Services provides legal representation within its licensed parameters, focusing on strategic alignment, evidence preparation, and compelling advocacy aimed at securing swift and positive outcomes for clients.
