B-1, r. 3.1 - Code of Professional Conduct of Lawyers

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61. A lawyer must take reasonable measures to ensure that every person who collaborates with him when he engages in his professional activities and, where applicable, the firm within which he engages in such activities, protects confidential information.
Similarly, when the lawyer engages in his professional activities within an organization, he must take reasonable measures to ensure that the organization provides him with the necessary means to protect confidential information.
O.C. 129-2015, s. 61.