Secure Electronic Transaction (SET)
The Secure Electronic Transaction (SET) protocol is a collaboration of Visa and MasterCard in order to make transactions more secure online payment, ensuring greater privacy and authenticity of data.
To use this protocol it is necessary that the seller has some software on its servers and PCs that the buyer holds a wallet and a PIN was issued by the company that issued your credit card.
The big news of the SET protocol is the authentication system of the seller and the buyer: the “contractors” have, namely, the ability to identify with certainty before any transaction begins. This is done through the use of digital certificates that are issued to both parties from their bank.
In this way, the buyer can verify the identity of the seller, thereby acquiring greater assurance about the goods or services they receive and the seller can in turn verify the identity of the buyer, acquiring more guarantees about the payment.
In order, therefore, e-commerce can develop is that users (the buyer on the one hand, the seller on the other) to perform their transactions in peace, without fear of external interference. In this sense, takes on great importance with the “user authentication”. Generally, this procedure is done through the request from the server a username which is associated with a password.
However, it was demonstrated that this system can not be considered completely safe, as the time of detection of the password by third parties are increasingly smaller. For this reason, it is now increasingly being recommended to the users to change their password periodically. This is predominantly for home banking systems, which require their users must change their password with a fixed basis or which makes use of a password “throwaway” (one-time password) that is replaced each time you log onto service.
Although the rules regarding e-commerce are particularly aimed at protecting consumers, we must not forget the equal rights of the Seller to operate in the online marketplace so serene. One of the main issues affecting the person who decides to offer a good or service online is definitely non-repudiation by the buyer. In this direction by the use of digital signature that makes a digitally signed contract can not be disregarded by those who have subscribed.
Initially, the transfer of data between the e-commerce and the customer was done in the clear. This was a possible safety issue, especially when there was a payment by credit card. With the advent of the Secure Socket Layer this risk was reduced, but then other problems emerged as the emergence of phishing and Trojan viruses that try to steal information used for sinister purposes.
With the spread of e-commerce sites and its popularity, there has been magnitude of insidious scams that mainly affect buyers. The main cases are:
- Sales of products from sites owl: Once the payment is not sent the goods, or is only simulated shipping. Problem also on eBay with listings scam.
- Construction sites cloned with the purpose of stealing information such as the code of the credit card.
- Companies that accumulate bankruptcy orders, and income, with no possibility of escape.
Many countries’ law requires that all e-commerce sites on the home page prominently display the VAT and the name of the company. The most important sites of e-commerce have a digital certificate that verifies the authenticity of the site visited.
The main problem from the point of view of companies is the order management simulation, where they are false or incorrect specification of the dispatch. To reduce the problem, many companies only accept advance payments.
The security problem also relates to the technology used for access to e-commerce. The phone is half unsafe to navigate the sites of e-commerce, and to make payments in kind.
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