Credit cards

Batching: Authorized transactions are stored in "batches", which are sent to the acquirer. Batches are typically submitted once per day at the end of the business day. If a transaction is not submitted in the batch, the authorization will stay valid for a period determined by the issuer, after which the held amount will be returned back to the cardholder's available credit (see authorization hold). Some transactions may be submitted in the batch without prior authorizations; these are either transactions falling under the merchant's floor limit or ones where the authorization was unsuccessful but the merchant still attempts to force the transaction through. (Such may be the case when the cardholder is not present but owes the merchant additional money, such as extending a hotel stay or car rental.) 

Clearing and Settlement: The acquirer sends the batch transactions through the credit card association, which debits the issuers for payment and credits the acquirer. Essentially, the issuer pays the acquirer for the transaction. 

Funding: Once the acquirer has been paid, the acquirer pays the merchant. The merchant receives the amount totaling the funds in the batch minus either the "discount rate," "mid-qualified rate", or "non-qualified rate" which are tiers of fees the merchant pays the acquirer for processing the transactions. 

Chargebacks: A chargeback is an event in which money in a merchant account is held due to a dispute relating to the transaction. Chargebacks are typically initiated by the cardholder. In the event of a chargeback, the issuer returns the transaction to the acquirer for resolution. The acquirer then forwards the chargeback to the merchant, who must either accept the chargeback or contest it. 

Secured credit cards

A secured credit card is a type of credit card secured by a deposit account owned by the cardholder. Typically, the cardholder must deposit between 100% and 200% of the total amount of credit desired. Thus if the cardholder puts down $1000, they will be given credit in the range of $500–$1000. In some cases, credit card issuers will offer incentives even on their secured card portfolios. In these cases, the deposit required may be significantly less than the required credit limit, and can be as low as 10% of the desired credit limit. This deposit is held in a special savings account. Credit card issuers offer this because they have noticed that delinquencies were notably reduced when the customer perceives something to lose if the balance is not repaid.

The cardholder of a secured credit card is still expected to make regular payments, as with a regular credit card, but should they default on a payment, the card issuer has the option of recovering the cost of the purchases paid to the merchants out of the deposit. The advantage of the secured card for an individual with negative or no credit history is that most companies report regularly to the major credit bureaus. This allows for building of positive credit history.

Although the deposit is in the hands of the credit card issuer as security in the event of default by the consumer, the deposit will not be debited simply for missing one or two payments. Usually the deposit is only used as an offset when the account is closed, either at the request of the customer or due to severe delinquency (150 to 180 days). This means that an account which is less than 150 days delinquent will continue to accrue interest and fees, and could result in a balance which is much higher than the actual credit limit on the card. In these cases the total debt may far exceed the original deposit and the cardholder not only forfeits their deposit but is left with an additional debt.

Most of these conditions are usually described in a cardholder agreement which the cardholder signs when their account is opened.

Secured credit cards are an option to allow a person with a poor credit history or no credit history to have a credit card which might not otherwise be available. They are often offered as a means of rebuilding one's credit. Fees and service charges for secured credit cards often exceed those charged for ordinary non-secured credit cards, however, for people in certain situations, (for example, after charging off on other credit cards, or people with a long history of delinquency on various forms of debt), secured cards are almost always more expensive then unsecured credit cards.

Sometimes a credit card will be secured by the equity in the borrower's home. 
 

Security problems and solutions 

Credit card security relies on the physical security of the plastic card as well as the privacy of the credit card number. Therefore, whenever a person other than the card owner has access to the card or its number, security is potentially compromised. Once, merchants would often accept credit card numbers without additional verification for mail order purchases. It's now common practice to only ship to confirmed addresses as a security measure to minimise fraudulent purchases. Some merchants will accept a credit card number for in-store purchases, whereupon access to the number allows easy fraud, but many require the card itself to be present, and require a signature. A lost or stolen card can be cancelled, and if this is done quickly, will greatly limit the fraud that can take place in this way. European banks can require a cardholder's security PIN be entered for in-person purchases with the card.

The PCI DSS is the security standard issued by The PCI SSC (Payment Card Industry Security Standards Council). This data security standard is used by acquiring banks to impose cardholder data security measures upon their merchants.

The goal of the credit card companies is not to eliminate fraud, but to "reduce it to manageable levels". This implies that high-cost low-return fraud prevention measures will not be used if their cost exceeds the potential gains from fraud reduction - as would be expected from organisations whose goal is profit maximisation.

Internet fraud may be by claiming a chargeback which is not justified, or carried out by the use of credit card information which can be stolen in many ways, the simplest being copying information from retailers, either online or offline. Despite efforts to improve security for remote purchases using credit cards, security breaches are usually the result of poor practice by merchants. For example, a website that safely uses SSL to encrypt card data from a client may then email the data, unencrypted, from the webserver to the merchant; or the merchant may store unencrypted details in a way that allows them to be accessed over the Internet or by a rogue employee; unencrypted card details are always a security risk. Even encryption data may be cracked.

Controlled Payment Numbers which are used by various banks such as Citibank (Virtual Account Numbers), Discover (Secure Online Account Numbers, Bank of America (Shop Safe), 5 banks using eCarte Bleue and CMB's Virtualis in France, and Swedbank of Sweden's eKort product are another option for protecting against credit card fraud. These are generally one-time use numbers that front one's actual account (debit/credit) number, and are generated as one shops on-line. They can be valid for a relatively short time, for the actual amount of the purchase, or for a price limit set by the user. Their use can be limited to one merchant. If the number given to the merchant is compromised, it will be rejected if an attempt is made to use it again.

A similar system of controls can be used on physical cards. Technology provides the option for banks to support many other controls too that can be turned on and off and varied by the credit card owner in real time as circumstances change (i.e., they can change temporal, numerical, geographical and many other parameters on their primary and subsidiary cards). Apart from the obvious benefits of such controls: from a security perspective this means that a customer can have a Chip and PIN card secured for the real world, and limited for use in the home country. In this eventuality a thief stealing the details will be prevented from using these overseas in non chip and pin (EMV) countries. Similarly the real card can be restricted from use on-line so that stolen details will be declined if this tried. Then when card users shop online they can use virtual account numbers. In both circumstances an alert system can be built in notifying a user that a fraudulent attempt has been made which breaches their parameters, and can provide data on this in real time. This is the optimal method of security for credit cards, as it provides very high levels of security, control and awareness in the real and virtual world.

Additionally, there are security features present on the physical card itself in order to prevent counterfeiting. For example, most modern credit cards have a watermark that will fluoresce under ultraviolet light. A Visa card has a letter V superimposed over the regular Visa logo and a Mastercard has the letters MC across the front of the card. Older Visa cards have a bald eagle or dove across the front. In the aforementioned cases, the security features are only visible under ultraviolet light and are invisible in normal light.

The Federal Bureau of Investigation and U.S. Postal Inspection Service are responsible for prosecuting criminals who engage in credit card fraud in the United States, but they do not have the resources to pursue all criminals. In general, federal officials only prosecute cases exceeding US$5,000. Three improvements to card security have been introduced to the more common credit card networks but none has proven to help reduce credit card fraud so far. First, the on-line verification system used by merchants is being enhanced to require a 4 digit Personal Identification Number (PIN) known only to the card holder. Second, the cards themselves are being replaced with similar-looking tamper-resistant smart cards which are intended to make forgery more difficult. The majority of smart card (IC card) based credit cards comply with the EMV (Europay MasterCard Visa) standard. Third, an additional 3 or 4 digit Card Security Code (CSC) is now present on the back of most cards, for use in card not present transactions. Stakeholders at all levels in electronic payment have recognized the need to develop consistent global standards for security that account for and integrate both current and emerging security technologies. They have begun to address these needs through organizations such as PCI DSS and the Secure POS Vendor Alliance. 
 

Conclusion 

To conclude, I would like to say that I personally can not imagine a man, living in the modern society without credit card. The benefit of one is crealry stated in my coursework. Still, it has some minuses and drawbacks, but you certanly can avoid them if you use you card carefully and according to bank's instructions. Credit card through past 50 years became a universal method of payment, borrowing and lending. Every day millions of transactions are made with the help of this thin piece of plastic. Banks are making their business on people's using credit cards. And people are making their lives easier and happier.

Most often credit cards can provide convenience but they can also land you in debt through unwise choices or through no fault of your own, such as an emergency. In order to overcome the risks of credit card use, avoid accumulating too may and pay the debt off on time, read terms and conditions carefully and take measures to avoid fraud.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

References 

FCAC Reports from 1995-2000 

Gracia M. (2008). Credit Cards Abroad 

Lyon J. (2008). Plastic Cards around the World 

Prater C. (December 18, 2009). Issuer of 79.9% interest rate credit card defends its product

Rеtriеvеd October 13, 2011 frоm Fox Business Wеb sitе:

http://www.foxbusiness.com/personal-finance/2009/12/18/issuer-rate-credit-card-defends-product/

       Rеtriеvеd October 11, 2011 frоm the UK Cards Assosiation Wеb sitе:

http://www.theukcardsassociation.org.uk/misc/-/page/faqs/#question2 

S. Mayer J. (2001). History of Credit 

Yuille B. Credit Cards

Rеtriеvеd October 13, 2011 frоm Fox Business Wеb sitе:

http://www.investopedia.com/

(2003). Comparison of exchange rates using Visa and Diners Club cards in USA. Financial Consumer Agency of USA

(2007). Credit cards and You. Financial Consumer Agency of USA 

(November 9, 2007). Visa

Rеtriеvеd October 17, 2011 frоm Sec Wеb sitе:

http://www.sec.gov/Archives/edgar/data/1403161/000119312507242653/ds1.htm