Will the subscriptions I setup through GF's add-on for PayPal be secure? I ask this because I've seen some hacks where people try to get a cheaper price for things some times. How does GF handle subscriptions, or does it use secure tokens from PayPal that we manually enter and setup with PayPal's subscription area to communicate?
I need to know if I should hack this up or if it's good as is. It's important to have them charged at the prices we set ;)