Trusted Foreign Auditing Act of 2023

S 3494, the Trusted Foreign Auditing Act of 2023, amends the Sarbanes-Oxley Act to address national security concerns about foreign auditors. It defines a "compromised auditor" as a branch or subsidiary of a registered accounting firm operating under the control or influence of a "covered country" (like nations identified in the Director of National Intelligence's threat assessment or specific military designations). The bill prohibits trading in securities of any U.S.-headquartered company ("covered issuer") that uses such a compromised auditor for required audit reports. This creates a direct trading ban enforced by the Public Company Accounting Oversight Board (PCAOB) when these conditions are met.