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What is Control deficiency?

A situation where a control is designed, implemented or operated in a way that does not prevent, or detect and correct, misstatements on a timely basis, or where a necessary control is missing.

The auditor communicates significant deficiencies, individually or in combination, in writing to those charged with governance. Other deficiencies are usually communicated in the management letter.

Source: BDS 265

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Last updated: November 8, 2026 · This definition is for general information only.

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