Add me to the list of those who've been hacked ...
Got an Apple receipt today for several apps which I never and would never purchase.
Immediately changed my password and removed my credit card information.
Called my bank and cancelled my card. Called their fraud department to report the incident.
That was the easy part...
The hard part is contacting Apple about this. Found the e-mail link and sent off a message, but no reply yet. Then went in to iTunes and clicked on 'Report a Problem" next to each item purchased, sending off a message saying I hadn't made the purchase, my account had been hacked, and I wanted a refund. Then got back several "computer-generated" messages from Apple apologising that I "hadn't been able to download my purchases" (???) and giving links to instructions how to do so. In other words, nobody had bothered to read what I had told them i.e. my account had been hacked.
As others have noted, it's impossible to get support for the iTunes Store on the phone with a real live human being. So, I'm at the mercy of their e-mail system and NOT impressed so far.
After years of no problems, this spooks me somewhat, and I don't think I'll be purchasing from the iTunes Store any more, it's just too unsafe. This being the case, I think I'll also be putting off any plans to upgrade my current 1st gen iPod Touch, I was thinking of a new one or an iPad but, if the iTunes Store ecosystem is so dodgy, such hardware upgrades would be pointless for me without content from the iTunes Store.