Reprint [Author] Zhu Xiangdong senior engineer of a bank
in today's digital era, Blackmail virus has become a serious threat to enterprises and individuals. Ransomware attacks can lead to data loss, system paralysis, and economic losses. In order to protect the interests of oneself and the organization, it is very important to take a series of preventive measures. Here are some key measures to help you consider taking measures to prevent ransomware attacks from multiple dimensions such as network, storage, application, desktop, and management.
I. Measures for network security
1. Strengthen network security protection and implement firewall, intrusion detection and intrusion prevention systems to prevent unauthorized access and malicious attacks.
2. Encrypt communication by using encryption protocol and virtual private network (VPN) to ensure the security and integrity of data during transmission.
3. Strengthen access control, and use authentication, multi-factor authentication, and access permission management measures to restrict access to data.
II. Measures for storage security
1. Data backup and recovery: regularly back up important data and ensure the integrity and availability of the backup data so that data can be recovered in a timely manner when attacked by ransomware.
2. Storage encryption: encrypts and protects sensitive data stored in the system to prevent unauthorized access.
3. Strengthen identity authentication and access control, restrict physical and logical access to storage devices, and ensure that only authorized personnel can operate.
4. Set security policies. Snapshots can prevent accidental deletion and modification of data and prevent ransomware from tampering with data. If a file is deleted or modified, a snapshot file is automatically generated, you can restore existing files from snapshots.
5. Set disaster recovery policies, establish disaster recovery environments, and set dual-center data replication and backup policies. The active data center is readable and writable, while the standby data center is unreadable and invisible.
III. Measures for application security
1. Security audit and access control, implement strict access control mechanisms, restrict users' access to systems and data, and monitor and audit users' behavior. Ensure that only authorized users can access sensitive data and detect abnormal activities in a timely manner.
2. Strengthen identity authentication and adopt a strong password policy to encourage users to use complex passwords and change passwords regularly. You can consider using multi-factor authentication, such as fingerprint identification, token or SMS verification code, to increase the security of identity authentication.
3. Security vulnerability management: Regularly scan and evaluate vulnerabilities to fix and update vulnerabilities in the application system in a timely manner. Ensure the security of applications and related components and reduce the chances of attackers exploiting known vulnerabilities.
4. Strengthen data encryption to encrypt and protect sensitive data, including data encryption during transmission and storage. Use strong encryption algorithms and security protocols to prevent unauthorized access and data leakage.
5. Regular backup and disaster recovery: establish a sound data backup and recovery mechanism, regularly back up application systems and data, and store the backup data in an offline and secure place. Ensure the integrity and availability of backup data so that data can be recovered in a timely manner when attacked by ransomware.
6. Maintain the update and upgrade of application systems: install security patches and updates of applications and operating systems in a timely manner to fix known vulnerabilities and weaknesses to reduce the risk of ransomware attacks.
4. Measures for desktop security
1. Install reliable security software, use verified and reputable security software, such as anti-virus software and firewall, to ensure timely update, and conduct comprehensive system scanning and real-time file monitoring, to detect and prevent potential ransomware attacks.
2. Update the operating system and applications in a timely manner, and regularly install security patches and updates for the operating system and applications to fix known vulnerabilities and weaknesses and reduce the risk of ransomware attacks.
3. Open emails and attachments with caution. Avoid opening attachments from unknown senders or suspicious emails, especially attachments containing executable files, macros, or scripts, because this may be one of the ways to spread the ransomware virus.
4. Carefully click links: avoid clicking links from unknown or untrusted ones, especially those sent through e-mail, social media or untrusted websites, because they may cause malicious websites or download malicious software.
5. Back up and restore data. Regularly back up important data and store the backup data in an offline and secure location to prevent data loss. At the same time, ensure the integrity and reliability of backup data so that data can be recovered in a timely manner when attacked by ransomware.
6. Strengthen password and identity authentication, use strong password, and change password regularly. At the same time, multi-factor authentication, such as fingerprint identification, token or SMS verification code, is enabled to improve account security.
7. Enhance safety awareness: educate and train users on how to identify and avoid potential ransomware attacks, such as not opening suspicious links and attachments, not downloading unverified software, etc. Improving users' safety awareness and vigilance is very important to prevent blackmail virus.
V. Management measures
1. Formulate and implement security policies, formulate clear security policies and specifications, and ensure that all employees understand and abide by Security policies. This includes password policies, access control, data backup and recovery, updates, and patch management.
2. Establish a security team and organize a special security team to monitor, evaluate and respond to security threats, including ransomware. The safety team can be responsible for implementing safety measures, conducting safety training and awareness improvement, and conducting regular safety audits.
3, do a good job in staff training and awareness promotion, provide regular staff safety training, teach employees how to identify and deal with ransomware attacks. Employees should understand the working principle, common transmission routes and defense methods of ransomware virus in order to develop safe behavior habits.
4. Implement security audit and monitoring, establish a security audit mechanism, and conduct regular security audit and monitoring on systems and networks to discover potential security vulnerabilities and abnormal behaviors. Real-time monitoring can detect signs of ransomware attacks as early as possible and take corresponding countermeasures.
5. Establish an emergency response plan, formulate and test an emergency response plan to deal with ransomware attacks. The plan should include steps to restore data, isolate infected systems, and notify relevant personnel and authorities so that they can take prompt action in the event of attacks.
6. Conduct regular drills and penetration tests, and conduct regular security drills and penetration tests to verify the effectiveness of security measures and identify potential vulnerabilities. This helps to correct security problems in a timely manner and improve the organization's resistance to ransomware attacks.
7. Cooperate with security experts and professional security agencies or consultants to carry out security assessment, threat intelligence sharing and security service provision. These cooperation can provide more in-depth security expertise and technical support to help organizations build stronger security defense capabilities.
Summary
by taking these key preventive measures, the risk of being attacked by ransomware can be greatly reduced, and the data and system security of oneself and organization can be protected. Remember, prevention is better than treatment, and it is everyone's responsibility to prevent blackmail virus attacks. Always be vigilant and cooperate with the team to ensure the safety of the enterprise's digital assets and institutions.
Original question: key measures for enterprises to prevent ransomware attacks
this article is reprinted from twt enterprise IT community, original link key measures to prevent blackmail virus attacks (qq.com)
