"Unauthorized accounts" refers to accounts that have been created or used without proper permission or authorization from the account owner or the relevant authority. Full definition
The thief may still be in possession of your personal data, but your credit freeze will prevent them from using that data against you to open unauthorized accounts. (thesimpledollar.com)
Only a credit freeze can prevent unauthorized accounts from being opened. (valuepenguin.com)
Only a credit freeze can prevent unauthorized accounts from being opened. (valuepenguin.com)