How much do you know about network security knowledge?

Author:Yunqiannan Time:2022.09.16

With the advent of the "5G" era, network security has become a topic of widespread attention. Cyber ​​security is not only about national security, but also closely related to the daily life of each of us. What can we do to avoid the leakage of personal information? How to avoid possible property losses? You have to know these things.

Is your SIM card password?

It is the habit of many people to set up a password and payment password on the phone, but will you set a password for your SIM card?

Personal information is often closely related to mobile phone numbers. Many APP accounts can be retrieved or modified by verifying codes. Some criminals use this vulnerability to pull out the SIM card after picking up the mobile phone to threaten your property security.

Have you scanned the malicious QR code?

With the development of electronic payment, cashless payment has penetrated into everyone's life, but some criminals implant Trojan virus and fishing software into the QR code, threatening people's information security. At present, malicious QR codes may mainly bring risks such as information leakage, personal property loss, and Trojan virus transmission.

Do not scan the QR code with unknown sources at will. After scanning the code, you can carefully check the relevant information. You can also download some high -profile and strong security software to avoid risks.

Like free WiFi in public places? Be careful of "fishing"!

Order a cup of coffee and watch a drama for free wifi in the cafe. Many young people like to relax in this way while working.

Most of the open wifi in public places. Some criminals induce everyone to connect through the way of setting up mobile base stations. The information, website access records, and even login passwords will be stolen by criminals. In addition, some malicious software will obtain users' address books, albums, payment information, etc. while connecting to the network. Be careful when connecting WiFi in public places.

Is your password safe?

"A set of passwords to the world" is the habit of many people, but this way of setting the password is convenient and remembered at the same time, it also increases the risk of personal information leakage. Generally, illegal elements will try to crack the user password in four ways. One is to crack violence, that is, try to crack the decoding code with a certain frequency. The second is to try to crack with personal information such as the user's birthday. The third is to try to use weak passwords. The fourth is to "hit the library" on other platforms based on the user password.

It is recommended not to store passwords by text. When setting the password, set up 15 or more "strong passwords" containing letters, numbers and special symbols, and regularly reset the password.

"Hacker" may be by your side

"Compared to the scope of the" hacker "today, the category of" hackers "is larger and the way to obtain information is wider." The names, addresses, and positioning of WeChat circle of friends in our online shopping may inadvertently leak individuals Privacy information.

At present, users' personal information trading phenomenon occurs from time to time, and the bombing of spam text messages is also annoying. To avoid such problems as much as possible, everyone needs to enhance the awareness of prevention, "sun -shaped", do not click on the information provided by strangers at will, and try not to use their true names on the network platform. "‘ Hacker ’may be by you and me.”

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