Why is apple asking for my security code on my credit card just for updating apps

Apple will ask you for the security code if you are accessing your account from a new device (say a new iPhone or iPad). It seems as if they will also just sometimes ask for it randomly. Both are for your protection. They're just making sure the account is being used by the authorized person.

Never put your credit card info into iTunes as Apple credit card security is horrible. There are many cases of credit card problems with Apple. My credit card was compromised 2 weeks after creating an Apple account. That was the ONLY online usage of my credit card.

Apple does NOT follow PCI compliance which is the credit card industry standards for credit card data protection. It requires all companies to NOT store credit card information online because (surprise, surprise Apple!) it can be hacked.

Why does Apple need to store the credit card data and put the information at risk and why do they not follow industry (PCI Compliance) guidelines - especially for free aps or updates?

My bank card information has been secure with Apple for over ten years in iTunes and the online Apple Store. Never an issue. You must have done something yourself to cause the compromise.

This is the first I've heard of a security problem at Apple. My card info has been in iTunes for years and I've never had any problems with it.