Which alert allows consumers to prevent the issuance of new credit without their consent?

The correct answer is the extended alert. An extended alert is specifically designed for consumers who have been victims of identity theft. This alert allows these consumers to prevent the issuance of new credit accounts in their name without their express consent. When an extended alert is placed on a consumer's credit report, it requires creditors to take extra precautions, such as verifying the consumer's identity before extending credit.

This alert lasts for seven years and is beneficial for those who want to safeguard their credit information over a longer period of time following an identity theft incident. It empowers consumers by ensuring that they have more control over their credit files, as creditors must follow specific guidelines before issuing new credit under their name.

In contrast, an initial alert typically lasts only 90 days and is meant for individuals who suspect they may be a victim of identity theft but have not yet confirmed it. The active-duty alert is intended for military members on active duty, allowing them to protect their credit while they are away from home. A time-limited alert is not a recognized category under the Fair Credit Reporting Act, which is why it does not apply here.