You're telling me that someone was desperate enough to log onto your PayPal, see that you didn't have enough money worth taking, so they decided to chargeback items which you recently purchased, which opens up a chargeback claim that takes approximately 1-2 weeks to fully process, all to steal about $20 (if he won the claim), and the hacker didn't trigger any of the many PayPal protections; but you caught it within 10 minutes.
Just making sure we're getting the story straight here.