Even though business planning, bookkeeping & administration are important for business success, the most important aspect of any business is sales & marketing. Operations, administration, strategic planning & bookkeeping are all necessary but irrelevant without the generation of leads & new customers.
Where to Locate your Security Code. Debit card security codes are located on the back of the card. The last three numbers to the right of the card are known as your security code. Why the Security Code is Important. The security code offers the cardholder an extra layer of protection from fraud and unauthorized use.
Find the security code on your credit card. The security code might be on the front or back of your card. Visa, MasterCard, Discover, China UnionPay, JCB, and Diners Club. Check the back of your card for a three-digit code that's after your card number.