Lawyers should be aware that email could theoretically be read by third parties in transit. Law Society of Upper Canada says encrypted (secured) systems should be used for especially sensitive communication: http://www.lsuc.on.ca/with.aspx?id=2147491197

If your laptop computer is lost or stolen, any confidential information stored on it could be compromised. The Canadian Bar Association “Guidelines for Practicing Ethically with the New Information Technology” recommends full disk encryption for laptops: http://www.cba.org/CBA/activities/pdf/guidelines-eng.pdf