1- Can visa card of one country be used in another country for cashing money by cash machine or in the bank considering the fact that the currency is different? 2- How can I use visa card for internet shopping? What is the secret code? Is it the 3-digit number in the back of the card? Should I keep it secret? How much secure is using visa card for internet shopping? Do you know anything about using “https://” instead of “http://” for more security? 1- Can visa card of one country be used in another country for cashing money by cash machine or in the bank considering the fact that the currency is different? 2- How can I use visa card for internet shopping? What is the secret code? Is it the 3-digit number in the back of the card? Should I keep it secret? Can I change it? How much secure is using visa card for internet shopping? Do you know anything about using “https://” instead of “http://” for more security?