First, no one hacked PayPal security. Second, someone got access to the person's account making the payment. PayPal would not disclose those details. It's the buyer claiming that the payment was unauthorized. PayPal has no choice but to refund when a buyer's payment service was used fraudulently. This is where seller protection is so important. When you comply with PayPal policies for seller protection, then PayPal will reimburse the seller for the loss. You did not comply with PayPal seller protection policices so it is your loss.
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