The EARN Starter Savings Program uses the same encryption and security standards as banks. We’re also verified and monitored by third party experts and we follow the Open Web Application Security Project and industry best practices for Web application security.
All the data in the system is stored in an encrypted form and only your transaction amounts will be tracked. We do not store your online banking credentials. You may change your online banking credentials or unlink your account at any time.
See this link for more information. https://www.earn.org/privacy-policy/