
in the current era of deep digital penetration, personal information storage and enterprise business operations are almost dependent on the network, which also makes the threat of network attacks ubiquitous. From phishing links that steal privacy to ransomware that paralyzes systems, the forms of network attacks are constantly refurbished, bringing different degrees of losses to different groups. This article will dismantle practical protection strategies from multiple levels such as basic protection, system reinforcement, and emergency response to help individuals and enterprises build a security barrier against network attacks.
personal equipment is one of the primary targets of network attacks, and daily protection is the first line of defense against network attacks.
1 Enable multi-factor authentication
simple password protection has long been difficult to deal with complex network attacks, multi-factor authentication by combining passwords, SMS verification codes, biometrics and other verification methods, greatly enhance account security. Even if the password is accidentally leaked, attackers cannot log in to the account with the password alone, effectively reducing the risk of account theft, which is one of the core means of personal account protection.
2, regularly update the system and software
network attacks often exploit system or software vulnerabilities to launch attacks, and the update patches issued by the manufacturer usually fix these known vulnerabilities. Individual users should turn on the automatic update function of the system and commonly used software, and install the latest patches in a timely manner, so as not to leave an opportunity for network attacks. At the same time, to avoid the use of uncertified pirated software, such software often has security risks and can easily become a breakthrough in network attacks.
enterprise system carries the core business data and customer information, is the focus of network attacks against the object, the need to build a more comprehensive protection system.
1, deployment of firewalls and intrusion detection systems
firewall can filter the traffic in and out of the network, block illegal access and malicious data packets, and is the first protection checkpoint of the enterprise network. Intrusion detection system can monitor network traffic in real time, detect and warn abnormal behavior in time, and help enterprises respond in the early stage of network attacks to avoid the expansion of the attack range. The combination of the two can effectively improve the overall protection ability of the enterprise network and reduce the probability of successful network attacks.
2, Carry out employee Security Training
many network attacks are successful through human factors such as employees clicking phishing links and leaking account information, so employee security awareness is a key link in protecting against network attacks. Enterprises should regularly carry out cyber security training to explain the forms and identification methods of common network attacks, and guide employees to standardize the operation process to avoid creating opportunities for network attacks due to negligence. At the same time, through simulated phishing tests and other methods, the level of security awareness of employees can be tested to make up for the shortcomings of protection in time.
identify latent network attacks in advance, it can effectively reduce the losses caused by attacks, which requires mastering certain abnormal behavior judgment methods.
1, pay attention to equipment and system abnormal performance
when the device suddenly slows down, pop-up ads surge, and files are inexplicably lost, it is likely to encounter a network attack. For example, when ransomware occurs, user files will be encrypted and ransomware prompts will pop up, while mining network attacks will occupy a lot of system resources, resulting in device cards. Users should develop the habit of paying attention to the status of the device, and once any abnormalities are found, they will be investigated and dealt with in a timely manner.
2, monitor network traffic and log
For enterprises, monitoring network traffic and login logs is an important means to find network attacks. By analyzing traffic data, abnormal data packet transmission, unfamiliar IP access, etc. can be found; viewing login logs can find suspicious behaviors such as remote login and multiple failed logins. Timely analysis and verification of these abnormal signals can intervene before network attacks cause serious losses.
even if the protective measures are perfect, it is difficult to completely avoid network attacks, master the correct emergency response methods, can effectively reduce the harm caused by the attack.
1, timely isolation of infected equipment
once it is confirmed that the device has suffered a network attack, it should be isolated from the network for the first time to avoid the spread of the attack to other devices or systems. For example, when encountering a ransomware attack, disconnecting the network can prevent the ransomware from further encrypting files, and it can also prevent it from spreading to other devices through the network, minimizing the impact of the attack.
2, preserve evidence and seek professional help
after a network attack, to retain as much as possible evidence related to the attack, including abnormal pop-up screenshots, log files, traffic data, etc., these evidence will help the subsequent attack traceability and responsibility. At the same time, individual users can contact cyber security vendors or the police for help, enterprise users should start emergency response plans, joint professional security team to deal with, quickly restore the normal operation of the system.
To sum up, resisting network attacks is a long-term and systematic work. Individuals and enterprises need to start from multiple links such as daily protection, system reinforcement, anomaly identification, and emergency response to build a comprehensive security protection system. Only by continuously improving security awareness and implementing various protection measures can we effectively reduce the risks caused by network attacks and protect our own cyber security and data security.