In recent years, network security incidents have occurred frequently. People pay more and more attention to external intrusion and network security. Most enterprises focus on improving the border security of enterprise networks. No matter what their investment in this area, the core intranet of most enterprise networks is still very fragile. Enterprise website design It also implemented corresponding protection measures for the internal network, such as installing tens of thousands or even hundreds of thousands of network firewalls, intrusion detection software, etc., It also hopes to realize the security isolation between the internal network and the Internet. However, this is not the case.
In enterprises, people often use modem dial-up, mobile phone or wireless network card to access the Internet privately. These machines are usually placed in the enterprise intranet. The existence of this situation has brought a huge potential threat to the enterprise network. In a sense, the firewall that enterprises spend huge amounts of money to equip has lost its meaning.
The existence of this access mode is likely to lead hackers to bypass the firewall and invade the internal network without the knowledge of the enterprise, thus causing serious consequences such as sensitive data leakage and virus spread. Practice has proved that many technologies that successfully prevent the security of enterprise network boundaries have no effect on protecting enterprise intranet. Therefore, network maintenance personnel began to focus on large-scale enhancement of the defense capability of the intranet.
Information is illegally leaked, copied and tampered, often causing huge losses to enterprises, governments or military departments. Make the internal network always run in a safe, reliable and confidential environment, help enterprises optimize and standardize the management of various businesses, and ensure the normal and safe operation of various businesses. This is the value that intranet security management products can bring to us.
Enterprise data security should not be underestimated
Unit assets, employees' private property - asset management is out of control: end users are randomly added, subtracted and exchanged in the network, and each terminal hardware device (central processing unit, hard disk, memory, etc.) It is arbitrarily assembled and disassembled, the operating system is arbitrarily replaced, various application software is randomly installed and uninstalled, and various peripheral devices (floppy disk drive, optical disk drive, USB disk, printer, modem, etc.) Used arbitrarily.
Worm flooding, business paralysis - virus and worm intrusion: due to untimely patches, network abuse, illegal access and other factors, the network is flooded, blocked, data is damaged and lost by viruses and worms, and the source of the disaster cannot be found, so it is impossible to quickly take isolation and other measures, bringing disastrous and lasting effects to normal business.
Open the portal to directly access illegal external access: mobile devices (laptops, etc.) As well as the newly added equipment is illegally accessed or invaded into the internal network without security inspection and processing, which brings insecurity factors such as virus propagation and hacker intrusion.
It is easy to deal with external thieves, but difficult to prevent internal thieves - illegal internal outreach: internal network users illegally use modem, dual network card, wireless network card and other devices for online dialing and offline Internet access, or illegally take the dedicated computer of the private network out of the network into other networks.
All losses are due to network abuse - leakage of important information: due to system vulnerabilities, virus intrusion, illegal access, illegal outreach, network abuse, peripheral device abuse and other reasons, as well as poor management, important information inside the organization has been leaked or damaged, resulting in irreparable major losses.
Enterprises can use the overall strategy to protect their data from being leaked:
First, we should protect the data usage environment in an all-round way, Including server, computer terminal, laptop, USB flash disk peripheral, network and file output. The final effect of leakage prevention completely depends on the weakest part of the whole protection link, just like the barrel principle.
The second is to focus on data, It provides full cycle protection from data storage, transmission and use. In the process of data storage and use, ciphertext can be used for protection. However, in the process of using open data, the data must be in the clear text state, so we must consider how to prevent data leakage in the clear text state.
Third, the protection of data leakage must provide multi-level protection, Just mentioning encryption is not enough. In addition to encryption, data leakage protection should also include a series of security measures, such as key management, identity authentication, access control and security audit.
The importance of information security is not what it used to be. Information security plays a more and more independent role in modern enterprises, and its importance is more and more balanced compared with human resources, means of production, management, technology and other production factors.
To sum up, for industries with high data confidentiality requirements, the construction of information security system not only requires strict "system defense", including the establishment of strict computer management rules and regulations, but also forms a restrictive relationship between internal personnel at all levels, functional departments and application systems, eliminates the possibility of internal crimes, and establishes a good fault handling response mechanism, Ensure the safe and normal operation of the information system; More mature and perfect "technology" is needed to prevent internal violations, information leakage of the intranet, and the impact on normal business and applications.
