Model Code
Rule 7.2-10
This rule applies whether the document is a physical copy or electronic.
This rule also applies if the document came from opposing counsel or the opposing party. Individual law societies in Canada have provided varying detail regarding the extra steps the recipient lawyer has to take.
Rule 3.3-1 [Commentary 7]
It is also important for lawyers who share workspace with other individuals, to ensure that systems are in place so to ensure that confidential information is not inadvertently disclosed.