Visa Credit Cards can be used almost every where and are widely accepted. They provide flexible ways to make purchases, with drawing cash, pay bills along with multi dimension offers like no liability, reservations during travel, groceries etc Visa Card provides high level of security to every card holder.
The offer of no liability is just for Visa cards which are issued in USA and also this offer is not applicable to transactions through ATM. Visa cards can not perform PIN transactions. Visa Standard Credit Cards, Visa Reward Credit Cards and Premium Reward Credit Cards are in marketed with distinctive benefits and offers.
All of the Visa cards rewards card holders by 24 hours coverage of their cars and no extra cost is charged in case of theft or collision. If card holder meets the terms required for this card then Visa Auto rental Collision Damage Waiver reimburse the cost to the card holder in case of any accident or damage.
CIS (Cardholder inquiry Service) is provided to facilitate the customers for 24 hours. Customer service lines are toll free and work quickly and efficiently and card benefit information can be getting any time. This service is available for all Visa cards in 25 languages. Visa Customer care service facilitates by providing information regarding accounts and card benefits.
Cash disbursement and replacement is available for every Visa credit card. In it, card holder can get cash amount in case of emergency. If card is lost then Visa Customer Care Services arrange for direct delivery of cash till card is replaced again. Visa Signature Cards give benefits for shopping, travel, sports and entertainment. For all of other visa cards no liability is offered which keep your account safe from unauthorized access. Added flexibility is provided by no pre-set spending limit. At the end of year, summary of financial statement is displayed.
Visa credit cards are protected by special unique numbers on them. The specification for credit cards numbers were finalized by International Standards Organization and other certification body. This step was taken to secure account information and to avoid unauthorized access of credit cards. Mostly 16 digit number is assigned to each Visa Credit card like other cards. And among them the left most digit is Major identifier than 6 digits are basically issuer identifier and the last digits are check digits. This means possible issuers are one million with different combination of six digits. The Luhn algorithm is used to get proper check digits
In the middle the nine digits are actually the account numbers. These nine digits create one billion combinations which mean same amount of account numbers with one issuer identifier. As first digit is major identifier so the nine different issue categories range from 0 to 9 which are ISO and other industries, Airlines and other Entertainment and travel, then next two are for banking and financial industry, petroleum, merchandizing, telecommunication industry and last 9 numbers are for National assignment. Credit cards issued by Amex are of 15digits and in this case account number is of 8 digits.
To check the validity of card all the numbers are not check by viewing the history of card holder. Credit cards processor uses a very easy and simple way which is known as Luhn algorithm. This algorithm starts reading the credit card number from left most digits to right most digits and sum the double of each next digit. And after calculating sum; a double digit is acquired then both digits of double number are added and if sum comes zero than it means it is a valid credit cad number and if other than zero than that ensures the invalidity of credit card number.
In this way problem of identity theft is avoided which is a big problem now days. Identity thieves can stole the personal information in many ways. They get access to credit card name of accountholder and change the personal information specially address so that accountholder could not receive the statements. They cause damage of money lost, credit card failure and many other frauds. And mostly original card holders can’t know about all this till it’s very late. So a secure credit card numbers can avoid this.
