An accountant performing an audit of a client has a specific duty to uncover an employee's embezzlement from the client.

Embezzlement

The theft or misappropriation of funds or property entrusted to one's care by their employer or another party.

Audit

An inspection or examination of financial records to verify their accuracy and compliance with laws or standards.

Accountant

A professional who performs accounting functions such as audits or financial statement analysis according to established standards.