Network security issues in e-commerce:

Firewall technology: Firewall (Firewall) is the most important security technology developed in recent years. Its main function is to strengthen the connection between networks. Access control to prevent external networks from entering the internal network;

Encryption technology: Data encryption is considered the most reliable form of security. It can fundamentally meet the requirements of information integrity and is a proactive security precaution. Strategy. Data encryption is to convert sensitive plaintext data into difficult-to-identify ciphertext data according to a certain cryptographic algorithm;

Digital signature technology: Digital signature (DigitalSignature) technology encrypts the digest with the sender's private key. transmitted to the recipient together with the original text. The recipient can decrypt the encrypted digest only with the sender's public key. In e-commerce security and confidentiality systems, digital signature technology plays a particularly important role. Digital signature technology is used in source identification, integrity services, and non-repudiation services in e-commerce security services;

Digital timestamp technology: In e-commerce transaction documents, time is very important information and is the main content to prove the validity of the document.

The following security threats exist in e-commerce:

1. Hacker attack

Hacker attack refers to hackers illegally entering the network and illegally using network resources. With the development of the Internet, hacker attacks also occur frequently and are difficult to prevent. Hackers use any loopholes and defects on the Internet to modify web pages, illegally enter the host, steal information, etc. to carry out related harmful activities. In 2003, the Pentagon of the U.S. Department of Defense alone suffered 2.3 million attempted attacks on its networks. It can be seen from here that hacker attacks have become an important security threat to computer networks in e-commerce.

2. Computer virus attacks

A virus is a contagious program that can disrupt the normal operation of a computer system. With the development of the Internet, viruses use the Internet to greatly accelerate the spread of viruses. They invade the network and destroy resources, becoming another important security threat to computer networks in e-commerce.

3. Denial of service attack

Denial of service attack (DoS) is a destructive attack. It is a user who uses some means to deliberately occupy a large amount of network resources and make the system An attack in which there are no resources left to serve other users. Currently, representative denial-of-service attack methods include SYNflood, ICMPflood, UDPflood, etc. With the development of the Internet, denial of service attacks have become an important threat in network security.