"For online and telephone purchases, you are usually asked for the CVV/CVC code, a 3 or 4 digit code on the back of the card. This proves that you have physical possession of the card."
I am a recent victim of on-line credit card fraud. Those three digits didn't help at all. An employee of a place I was doing business with (on-line) must have sold all the information to somebody else, who was using it for expensive downloads on line ($700.00 bucks worth).
The good news is I know which business ripped me off because the fraud was a few days after the one time I used this credit card in about a year. That made it quite obvious. A police report has been filed in this case.
This is the third time that I have been a victim of credit card fraud, but this was the only time from on-line. I noticed the $700.00 worth of charges no more than a day later after it was fraudulently used.
The time before this, somebody made an illegal copy of my credit card with a different name on it. I have reasons to believe this was done at a Chinese Restaurant in San Francisco. In this case, the credit card company discovered the problem before I did and called me.
The other time was when I charged $200.00 worth of gasoline for $15.00 worth of gasoline into a small car. I had the receipt with much different numbers than the bill.
Anyway, fixing all these problems went smooth at no cost to me.
-Don-