... I'd be entering banking info etc., on a remote server. Am I being overly paranoid?
Not IMO, I looked at Quickbooks and M$ Money and just entering my banking info into a program on my own computer stopped me from using either of them. I only keep the last 4 digits of any banking accounts, or ID's on my computer. There are certainly conveniences to cloud computing, but I'm not sold on it yet. I know encryption makes the transmittal of such info over the web pretty secure, but somebody else storing and having access to such information and putting my faith in an unknown security dept. doesn't sit well with me yet.
Especially when my own bank threatens to block my access to my accounts because my Windows XP Pro is not secure enough. BUT their whole bank runs off of Windows XP Pro!!! This is the largest bank in the world and it's running on an operating system they themselves consider unsecure and a risk.