The Gramm-Leach-Bliley Act (GLBA) was enacted in 1999 to repeal the Glass-Steagall Act. The repeal of Glass-Steagall allowed mergers between different types of financial institutions to occur, which enabled increased efficiency in the dissemination of financial information. To promote consumer privacy, the Gramm-Leach-Bliley Act included regulations to limit the ways in which companies handled and shared financial data.
Protection of information is generally elaborated through three set rules in the act:
Source: https://en.wikipedia.org/wiki/Financial_privacy_laws_in_the_United_States#Gramm-Leach-Bliley_Act