Please refer to the Plaid's page on security for more information. https://plaid.com/security/
You can easily access and manage your data through the Plaid portal.
What you can do using the Plaid Portal:
View the connections between your financial account(s) and apps
View the types of data shared with each of your apps.
Disconnect your financial account(s) from your apps.
Delete your financial data from Plaid’s systems.