Under PCAOB Rule 3520, the auditor “must be independent of the firm’s audit client throughout the audit and professional engagement period,” which includes satisfying the independence criteria of the SEC and the PCAOB. But what happens when the auditor violates one of the independence rules—let’s say one of the specific prohibitions under Rule 2-01(c) of Reg S-X? Can the auditor’s violation be “cured”? Can the auditor still affirm its independence? How is that determined?