When using Express Web connect to automate Web connect downloads from your financial institution's Web site, your user name and password are encrypted and, depending on your financial institution's procedures, will be stored on our firewall-protected servers or in your Quicken software. Your financial information is transmitted using secure socket layer technology and is encrypted, so it is unreadable during transmission. It is then stored on our firewall-protected servers and is securely transmitted directly to your desktop computer when you initiate One Step Update. Your information is confidential and is not used for anything other than providing and maintaining the One Step Update service.

http://quicken.intuit.com/support/help/account-transaction-i...