All you need to do is set your xbox live primary dns setting to 0.0.0.0. This will give you loads of money when doing missions and killing AI. This will also boost you RP and you will get god mode. ENJOY.
I had a guy join one of my games and he gave me billions of dollars and set my rank to 256 (Didn't ask for permission, just did it). I loved the money, but since he set my rank higher I feel like i'm gonna be punished by Rockstar for it.
You didn't mod, so you should be fine. I've been gifted over $6bil so far, and i'm fine. If anyone goes online with that DNS, you have a pretty good chance of getting chucked into the cheaters pool or being banned.
It's not the money i'm worried about. It's the RP that was boosted, I mean it was 87 to 256 in a second and that's a huge jump..
I imagine Rockstar must know by now that it's now out of control and that people are being given all these things without permission. I wouldn't think there would be a repercussion for it.
You still didn't mod, so there should be no problen. If there is at some point, make a ticket with Rockstar support and they should be able to help you.