Referring to the PCAOB website and other professional accounting websites, conduct a research of the possible code of professional conduct violations by EY, KPMG and PwC (acconting firms and professionals) in the CPA exam cheating scandals.
SEC.gov | Ernst & Young to Pay $100 Million Penalty for Employees Cheating on CPA Ethics Exams and Misleading Investigation
SEC.gov | KPMG Paying $50 Million Penalty for Illicit Use of PCAOB Data and Cheating on Training Exams
PwC fined over exam cheating involving 1,100 of its auditors (ft.com)