I signed on Live today and had a pop-up notice that said my account was accessed " by another xbox 360 console." I checked my download history on xbox.com and the most recent download was PREMIUM GOLD PACK and PREMIUM GOLD JUMBO on 2/12/2012, which I never bought. Now my MS point balance is at 10, and I'm still a free Live member. Luckily I didn't have my credit card info saved in my billing options.
PLEASE help refund my MS points, and what I need to do to avoid future hacks.