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Secure e-mail was once a solution looking for a problem. Today, that problem has emerged in the form of regulatory requirements. In the health care sector, the Health Insurance Portability and Accountability Act (HIPAA) mandates that personally identifiable patient information must travel via secure channels. In the financial sector, the Graham-Leach-Bliley Act and other government regulations demand that confidential information be sent securely. Canadian and European privacy directives also affect the use of e-mail and sensitive information.