In the past, before the era of Internet and rapid communication, when banks and various institutions completely controlled all banking services, no bank could do anything. Then the bank cartel was established. This shows that all the services provided have a high commission. From general transactions conducted by any person on the account to international payments made between global accounts.
Although some services previously managed by banks are increasingly competitive, this situation still exists.
In recent decades, with the tremendous technological progress in the fields of computing, the Internet, especially satellite communications and optical fiber, we were lucky to have no technical means for these measures in the past, which provided convenient and easy options for carrying out many tasks that could not be completed.
E-commerce is one of the fastest growing fields in recent years. Ebay and Alibaba have become the world’s largest retail companies. In addition, the global international payment field has also made great progress, and more and more companies have participated in this field. Compared with banks, the commissions provided by these companies are greatly reduced, and the waiting time will not be wasted, which is a major advantage. Their advantage is to use the Internet to perform all tasks.
With the growing development of online transactions and online transfers, the risk of using the network also increases.
Concerns about hackers in cyberspace are becoming more and more serious and widespread. This threat is divided into two main groups and constitutes various crimes. The first group is composed of threats from political hacker organizations, which target government websites or personal websites with ideologies they oppose. These attacks are mainly carried out by preventing service distribution (DDoS), which will slow down website access, and attack and destroy websites through hackers. The second type of threat is composed of different organizations engaged in criminal hackers and other criminal activities, including various data, business data, confidential information, especially the theft of credit card details. This is particularly common on websites that offer e-commerce options, such as international payments via the Internet.
Although it is natural and understandable to worry about theft and fraud when working over the Internet, many effective mechanisms have been developed for safe online use.
To solve the security problem and enable the website to be used safely and efficiently, there must be a security protocol (SSL Secure Socket Layer) that encrypts the data sent to and transmitted from the website, and establishes a secure communication channel between the two computers. The SSL protocol is based on an A-symmetric method that contains two keys. Therefore, encrypted messages can only be decrypted by a third party, and vice versa. This is called public key encryption private key.
In addition, the protocol also ensures that the connected server is the correct server and that the information transmitted from the PC is completely sent to the website. If an error type is found in the information sent by the server, it must be automatically replayed in the browser.
In this way, information can be transmitted safely without any “interference”
Another advantage of the SSL protocol is that SSL certificates must be issued on all servers that will use the protocol. A company issued the certificate. The company will also confirm the identity of the person or party applying for the certificate.
By using these certificates, users can transfer sensitive data to specific servers, and confirm that the target server is not an impostor trying to steal sensitive data. This is done by the browser request ID. The server sends a copy of the SSL certificate to the browser. The browser checks whether the SSL certificate is trusted, and if so, sends a message to the server. The server sends a digital signature confirmation to start an SSL encryption session. Share encrypted data between browsers and servers.
In addition, the website must be protected by anti-virus software to prevent viruses and spyware from being uploaded to the website.
When entering the payment page of the website, in the address bar:“ The yellow lock icon appears on the https://”” page. If the icon is on a Web page, the browser identifies it as a secure Web site.
Place the cursor on the lock icon and small label describing the security type to determine the encryption method.
