The act requires banks and financial institutions to alert customers of their policies and practices in disclosing customer information.

The Gramm-leach-Bliley Act requires banks and financial institutions to alert customers of their policies and practices in disclosing customer information. The act was created in 1999. If the customer did not like the policies and practices of the financial institutions they could opt out. A major concern was how financial institutions used customer's private information and what third parties the institutions sold the info to. This act helped customers avoid this.