Don't use Valorsuite!!! I have had two accounts with bad passwords now only used it for two days!! I'm telling you change your password and delete your cookies now! I'll post screenshots.
I have a ticket in for the accounts, but you need to take this program down!! I only used it two days and my password has been changed. I used the dailies, the autobuyer for stamps as well, and also the shop pricer. It is a total scam! Works great with no bugs once it's setup but I just came home from work and ta-da... Bad passwords.
I've used ValorSuite before however, though not a lot. Never had to have bad password or had any other cause to worry about my security because of the program. And mine is a pretty old account, fairly sellable on a shady site I'd reckon especially when spruced up.
And I'm not an exception, many members with many valuable accounts and items have used the same with no cause for worry about security either.
You could have been hacked (assuming you were) through some other means perhaps? After all, Neopets actually posted about a security exploit on Facebook recently, and they don't exactly do that often. You could have gotten caught out by that perhaps?