Under the Gramm-Leach-Bliley Act, which of the following is considered nonpublic information?

The correct identification of a borrower's current loan balances as nonpublic information is rooted in the intent and provisions of the Gramm-Leach-Bliley Act, which aims to protect consumers' personal financial information. Nonpublic information refers to information that is not publicly available and is related to the private financial matters of individuals.

A borrower's current loan balances are sensitive financial details that are typically only available to the borrower and their financial institutions. This information reflects the borrower's financial status and history, which, if disclosed, could lead to unauthorized transactions or identity theft.

In contrast, the other options listed do not qualify as nonpublic information. For example, the former owners of a property and the street address of the property are generally part of the public record and can often be easily accessed by anyone. The assessed value of a property is also regularly available from public tax records and is typically not considered confidential. Hence, these aspects do not fall under the protections afforded by the Gramm-Leach-Bliley Act, as they do not pertain to individual private financial data.