Is a CVV number required?

[N1CKH0LAS]

Here's what i found while browsing the web:

Is a CVV number required?

Fraud is always an issue when it comes to online purchases and asking for a CVV number is one method of curbing fraudulent credit card use. It is also one extra field to ask users to fill out. So does the extra hassle affect conversion rates? Apparently it does. Overall, conversion rates were a full 40% higher where retailers did not require a CVV number.

If this is a solid finding, retailers must balance the trade-off between fraud prevention and ease-of-use for legitimate purchasers.

55% of Top 100 retailers require shoppers to give a CVV number during the checkout process.

I would also give you the source but i can't do this because i get the error:

You are only allowed to post URLs to other sites after you have made 30 posts or more.

Is there actually any sponsor or website still using a script that don't require CVV ? [ except Amazon ] [ Actually in xxx industry, not on the whole web ]
I think it's 1000 times better to require CVV and have less sales than having a website that won't require CVV and have lot of chargebacks because of fraudulent transactions and stuff...

What do you think ? Feel free to share your experience + examples...