David C. Chan is a highly experienced audit professional who has practiced information technology (IT) auditing and IT security in public accounting, banking and the public sector. He has many years of IT audit and security management experience in PwC, Bank of Montreal, Office of the Auditor General of Ontario, Hydro One and Ontario Treasury Board Secretariat. David has taught information systems auditing in Ontario universities. In addition to his degree of Master of Science in computer science, David has earned the following professional designations:* Chartered Professional Accountant* Certified Information Systems Auditor* Certified Information Security Manager* Certified Information Systems Security Professional* Certified Internal Auditor* Certified Fraud Examiner* Project Management ProfessionalDavid has been active in professional research with Chartered Professional Accountants Canada (CPA Canada), Chartered Professional Accountants Ontario (CPA Ontario) as well as Information Systems Audit and Control Association (ISACA). He has served on the CPA Canada IT Advisory Committee, the CPA Ontario Course Content Committee and the ISACA Test Enhancement Committee. David has published in CPA Magazine and Information Systems Control Journal on the topics of audit risk and cryptography. David has also taught the preparatory courses for the CPA Ontario Core Knowledge Examination and the Certified Information Systems Auditor Examination.