Skype is telling the world what caused the massive Skype Out (of service) last Wednesday and Thursday..While rumors persist that it was a hack job, no way would they admit that in my book.
Very few companies ever admit their services or software were hacked, especially when with Skype there wasn’t much to steal yet. It just invites more hackers, but now that there is a Paypal tie in, I wouldn’t be surprised to see some of the hackers try.
My advice, avoid linking for now your PayPal and Skype.