Scheduling A SSIS Package Using SQL Agent (passing Credentials)

Hi:

I created a fairly simple SSIS package to move data from a remote server which uses SQL Server Authentication to a local server that uses Windows Authentication. Everything works fine when executing the package within BI studio and if I execute the package by connecting to SSIS. If I schedule it as a SQL Server Agent Job, however, the non-integrated security fails unless I manually edit the connection to include the password. Obviously this is insecure because it is in plain text. What can I do?

Thanks.