I'm selling music online. Someone said they'd buy my music (I'm Korean and he's a foreigner). The buyer said it was his first deal, so he needed a security code. At that time, I was a little excited because it was the first sale, and I just woke up in the morning, so I couldn't judge rationally. I sent that security code to Instagram, and I sent it less than a minute ago, and as soon as I realized it was a misjudgment, I deleted the message. So I logged in to PayPal, and I was embarrassed to hear that the password was changed.
But I checked my PayPal account by changing my password again through my email authentication. And then I installed the OTP app and updated the two-factor authentication. Fortunately, I didn't have any money on PayPal, and I didn't lose any money. And now I'm going to stop my card and go to the bank on Monday to get my card reissued. What else should I do Now?