Network security protection skills

Network security protection skills, we need to surf the Internet every day, but you know, there are many hidden dangers on the network that need our constant attention. I've compiled the relevant information about network security protection skills for you. Let's have a look.

Network security protection skills 1 1, information leakage

Fraudulent means: criminals collect personal information through the Internet, hotels, communication operators, questionnaires and other means for fraud.

Typical representatives: telecom fraud, non-contact crime, robbery, extortion.

Preventive measures:

1. Handling personal sensitive information in a high-security physical or logical area;

2. Sensitive personal information needs to be encrypted and saved;

3. Don't use a USB flash drive to store interactive personal sensitive information;

4. Try not to save or process personal sensitive information on devices with Internet access;

5. Encrypt the email, and be careful not to send it wrong;

6. Choose a reliable mailing company to send the parcel and ask for a receipt.

Second, phishing.

Fraudulent means: by making fake websites, criminals send addresses to customers' computers, mobile phones or search websites to trick customers into logging in, thus stealing customer information and committing fraud.

Typical representatives: shopping and chatting, secretly sending phishing websites, online and short messages, joint phone fraud, stealing QQ numbers to defraud friends, and tempting low-priced goods.

Preventive measures:

1. Verify the authenticity of the website qualification by querying the website filing information;

2. Install safety protection software;

3. Be wary of notification emails and text messages about winning prizes and changing online banking passwords, and don't tap unverified unfamiliar links;

4. Don't do financial business on computers used by many people, such as Internet cafes.

Third, online shopping Trojans

Fraud means: Online shopping Trojan is a new fraud Trojan in recent years, which is mainly based on transaction hijacking. When communicating with online shoppers, "merchants" transmit files to buyers in various names to achieve the purpose of theft.

Typical representatives: number theft, transaction hijacking and "compressed package bomb"

Preventive measures:

1, be sure to install anti-virus software on the computer and scan the system regularly to kill viruses; Update Trojan horse library and system patch in time;

2. When downloading software, try to go to official website or a large software download website corresponding to the software, and carry out antivirus before installing or opening software or files of unknown origin;

3. Please don't open unknown web links at will;

4. Don't receive files sent by strangers when using network communication tools.

Fourth, online pyramid selling.

Fraud: There are generally two forms of online pyramid schemes. One is to promote the idea of making big money easily by using web pages; The second is to establish an online trading platform, rely on the development of members to gather wealth, and develop others to join it, forming a hierarchical relationship between online and offline pyramid schemes.

Typical representative: when browsing the web page, I found that "you are rich with a mouse click"; Information such as "sitting at home can also make money".

Preventive measures:

1. When you encounter related entrepreneurial and investment projects, you must carefully study its business model. No matter what the banner is, if the project it runs does not create any wealth, but promises that the developer will get a "reward" as long as you pay to join the club, please be vigilant.

2. Overcome greed and don't fantasize about "getting rich overnight".

Five, QQ, WeChat, Weibo, email and other fraud.

Fraud means: First, criminals use QQ hacking and online game transactions to defraud and pretend to be QQ friends to borrow money; Second, using communication software to publish winning tips to QQ users, MSN users, Weibo users, email users and Taobao users on the Internet at will, so as to cheat the winners.

Typical representative: posing as a QQ friend, publishing winning information,

Preventive measures:

1, not greedy and cheap;

2, careful screening, strict prevention;

3. Don't trust the information that requires you to pay in advance in various names, and don't lend your bank card to others easily;

4. Raise awareness of self-protection, pay attention to keeping your personal information, such as my ID number, account number and password, and keep it secret from others, and try to avoid using online e-commerce services in public places such as Internet cafes.

Network security protection skills 2 1, don't chat with strangers easily.

On the Internet, adding strangers and chatting with strangers are very risky. Easy to be cheated, easy to steal personal information, easy to steal passwords of various cards, mobile phone verification codes, etc. Therefore, don't add strangers easily, don't chat with strangers easily, don't trust strangers easily, and don't tell strangers your information easily. No matter what social software, chat room or chat APP you use, you should pay attention to it, don't add it, don't chat, and you can't meet netizens.

2. Don't tell personal information to others.

The personal information mentioned here includes the real information of oneself, parents, family and friends, mainly including name, gender, age, address, school, ID number, telephone number, photo, bank card number, verification code, password, house number, micro signal, QQ number, email address, zip code, daily walking route, going out time, personal preference and so on. And you can't tell anyone. Other people here refer not only to strangers, but also to people they know.

3. Stay away from unhealthy or inappropriate websites, videos, pictures, documents or speeches.

Resolutely do not browse unhealthy or unsuitable websites and websites for children; Resolutely do not watch unhealthy and inappropriate videos, pictures, documents and speeches; Resolutely stay away from unhealthy and uncivilized information and pictures; Stay away from people who publish and talk about unhealthy information.

4. Don't forward or spread false statements, and don't attack others.

Do not forward or spread false statements or attack others anywhere on the Internet. Don't attack others, let alone say anything that offends others. Don't spread or repost other people's content that violates the code of conduct of primary and secondary school students or even violates the law. The internet is not a place of extra-legality, and everyone online and offline is a law-abiding citizen.

5. Don't click on links and emails of unknown origin at will, and don't play online games at will.

In the process of surfing the Internet, we must be careful not to click on the animation and text links on the webpage easily, and do not click on links of unknown origin, pop-ups, animations, advertisements, spam, greeting cards, winning information, bull stock recommendation, red envelopes, bargaining links, recruitment links, red envelopes, online shopping links, etc. Don't play online games endlessly at will.

6. Don't download, install, scan or identify at will.

In the process of surfing the Internet, don't download and install unknown or nameless App programs at will, but use regular browsers and App programs to download and install them through regular browsers or software butlers.

Do not scan or identify the QR code at will. Now there are two-dimensional codes everywhere, which is convenient to scan and brings some security risks.

7, regular network security testing, antivirus and data backup.

We can use mobile phones or computers with their own security software and anti-virus software, or download regular security APP programs and anti-virus software from application stores and software managers, and regularly carry out network security detection and anti-virus on mobile phones and computers.

At the same time, it is necessary to back up important data regularly. Especially for primary school students' own files and important data, they can be backed up regularly. These important data information can be uploaded to the cloud for storage, or copied to a USB flash drive, or copied to other computers for storage, or burned to a CD. Prevent the loss of important data and materials when the computer or mobile phone is paralyzed, damaged or lost due to network attacks.

Network security protection skills 3 1, firewall

Install the necessary firewall to prevent the detection and information collection of various scanning tools, and even prevent the connection of machines in certain IP address ranges according to some security reports, which adds a layer of protection to the server. At the same time, it is necessary to adjust the network environment in the firewall to eliminate the security risks of the internal network.

2. Vulnerability scanning

Use commercial or free vulnerability scanning and risk assessment tools to scan the server regularly to find potential security problems and ensure that normal maintenance work such as upgrading or modifying the configuration will not bring security problems.

3. Security configuration

Turn off unnecessary services, and it is best to provide only needed services, install the latest patches of the operating system, upgrade the services to the latest version and install all patches, and configure them according to the security suggestions of service providers. These measures will greatly improve the security of the server itself.

4. Optimize the code

Optimize the website code to avoid sql injection and other attacks. Check website vulnerabilities, find possible dangers in the code, and often test and maintain the code.

5. Intrusion detection system

Using the real-time monitoring ability of intrusion detection system, we can find the ongoing attack behavior and tentative behavior before the attack, and record the source of hackers and the steps and methods of the attack.