Self-sovereign identity is a model in which individuals control their personal information without relying on a central authority, such as a government or a bank. It uses blockchain to store verifiable credentials that can be shared securely and selectively. In the financial sector, this allows users to access services without cumbersome verification processes, reducing the risks of fraud and identity theft. Additionally, it facilitates financial inclusion, allowing people without a banking history to prove their identity reliably. Its adoption is growing, driven by the need for greater digital privacy and security.