Apple confirmed the same too that 400 iTunes users had their accounts hacked in the weekend. This was done by a Vietnamese developer Thuat Nguyen to increase his apps rating in iTunes.
So what the developer did actually? Nguyen gamed the App Store ratings in the Books category, by purchasing his own apps using hacked iTunes accounts. At one point, the developer's apps occupied 42 of the top 50 apps sold in the Books section, and users reported purchases of up to $1000 with their accounts. The developer gained access to hundreds of accounts, used those accounts to buy his apps, and then watched as those apps were artificially inflated on the "top sellers" list of the App Store.
Apple says that these 400 users count to 0.00003% of users daily. However Apple has urged users to change their password immediately. It has also been requested to these users who think their accounts have been compromised to call their banks and cancel these credit card accounts. According to Apple the ITunes server cannot be compromised and haven’t been too. Apple says these users fell pray to phishing.
After this, Apple has announced that the CVV numbers will be asked for sure as that will prove that the users are actually with the credit cards.
