What is Plaid and what does it do? April 12, 2021 19:44 Updated Plaid is a third-party service that we use to create a secure connection to financial institutions. Plaid is not affiliated with Atom. You can learn more about why Atom uses Plaid, or learn more about how your data is being handled through Plaid. Related articles I am having trouble connecting my Portfolio account through Plaid. How do I connect my Interactive Brokers account? My portfolio is showing incomplete or incorrect data. How often is my portfolio refreshed? Which markets and securities are covered by Atom?