"1. I have no idea.... There is no logcal reason I can find based on my behavior. 2. Strong password. 3. Always possible it could have been guessed but highly unlikely 4. Yes.. also strong and not compromised (all changed now of course) 5. Yes and Yes. Paypal said they were powerless to reverse the charge as they were not a financial institution, but promised that I would not lose the money. Apple blocked my account, even for my own use. My bank blocked the transactions (luckily I had a bank account as funding source on paypal and that slowed down the process of clearance enough to stop the money being paid). 6. OS x 10.6 7. Never." - Keith Teare