Ransomware attack is one of the common network security threats, which occurs very frequently, and the damage, loss and impact caused are unpredictable. So how can corporate websites prevent ransomware attacks? The following is a detailed introduction.
What is ransomware?
Ransomware is essentially malware that infects a computer and restricts a user's access to the computer and its files. Ransomware is a common way to extort money through the network. It is a network attack that can immediately lock the target user's files, applications, database information, and important information related to business systems. Until the victim pays the ransom, the attacker can restore access through the key provided by the attacker.
Ransomware usually encrypts emails, databases, source codes, pictures, compressed files and other files on the user's system in some form to make them unusable, or reduces the availability of the system by modifying system configuration files and interfering with users' normal use of the system, and then sends blackmail notifications to users through pop-up windows, dialog boxes, etc., requiring users to transfer money to designated accounts to obtain passwords for decrypting files or methods to restore the normal operation of the system.
How can corporate websites defend against ransomware attacks?
①External links and email security: Phishing emails are currently the main way for ransomware to spread. Units and users with conditions should deploy email protection products to spread viruses to all email attachments.
②Security awareness training: It is very necessary to conduct continuous security education and training for employees and computer users, and users should understand the way ransomware spreads.
③Data backup and recovery: Reliable data backup can minimize the losses caused by ransomware, but at the same time, these data backups must be protected to avoid infection and damage.
④Security tools: provide spam filtering, link filtering, domain name system blocking/filtering, virus detection and intrusion detection and defense.
⑤A network security strategy with multi-layer protection: Many ransomware is combined with advanced network attacks, and a single protection method cannot be resisted. A combination of multiple protection methods should be adopted to build a multi-layer network security protection system.
⑥Network isolation: At present, ransomware can spread through the local area network. In order to prevent the spread of ransomware, effective network isolation measures should be taken to isolate key business service programs, data and equipment into an independent network to prevent infection from the network.