How to increase the security of Wi-Fi?Understand the types and mechanisms and use them safely

While various electronic devices are connected to Wi-Fi, convenience is increasing, but it is also necessary to reconsider the security of Wi-Fi.However, many of the general users do not know how to increase the security of Wi-Fi.

Therefore, here, we will explain the types and mechanisms of Wi-Fi security, and explain how to enhance security for ordinary users.

table of contents

1.Why does Wi-Fi router need security?

2.Security strength differs for each type of Wi-Fi

2.1.Three types of Wi-Fi security

2.1.1.WEP

2.1.2.WPA

2.1.3.WPA2

2.2.Two types of encryption methods

2.2.1.Tkip

2.2.2.AES

3.Security combination

4.How to strengthen security to Wi-Fi?

4.1.Always change your ID and password

4.2.Introducing security software

4.3.Utilize VPN communication

4.4.Always use the latest firmware

4.5.Check the connected device

5.Be careful when using public wireless LAN

6.summary

1.Why does Wi-Fi router need security?

A Wi-Fi router is a machine that connects with external communication lines such as optical lines and converts the external line into Wi-Fi radio waves.Security to this Wi-Fi is indispensable for safe and secure communication.

If the Wi-Fi router has not taken security measures and anyone can access it, a malicious third party will be invaded into the network and personal information will be excluded. There is a possibility.

In addition, a Wi-Fi router without security can be used for free.Neighbors can connect to the Wi-Fi router without permission to surf the Internet or online games.Wi-Fi routers increase the speed as the number of connection devices increases, so if you use a Wi-Fi router without permission, the communication situation will be worse and you will feel stressed.

2.Security strength differs for each type of Wi-Fi

The security strength of Wi-Fi depends on the security standard and encryption method.

2.1.Three types of Wi-Fi security

Wi-Fi security standards are "WEP", "WPA" and "WPA2".I will explain what standards for each.

2.1.1.WEP

WEP is the most long history Wi-Fi security standard.Because the structure is simple, the decoding method is widely available.From a security point of view, you should refrain from using it.

2.1.2.WPA

WPA is a security standard that was born after WEP.During the communication, the encryption key is automatically changed every time, and the security is enhanced than the WEP, but the decoded case has been reported, so it cannot be said to be 100%safe.。

2.1.3.WPA2

WPA2 is a standard that further enhances the security of WPA.At present, it is the most security standard and is used in many Wi-Fi routers.

2.2.Two types of encryption methods

暗号化方式とは、データを変換するために定めたルールのことを言います。Wi-Fiルーターにおいては「Tkip」と「AES」の2種類があります。

2.2.1.Tkip

Tkipとは、通信時に暗号キーが毎回変更される暗号化方式のことです。仮に暗号キーが解読されたとしても次の通信では使用できないため、セキュリティのレベルはかなり高いと言えます。

2.2.2.AES

AES is an encryption method developed in the United States.Repeat and sort of data on the network and encrypt it.The security level is very high, and it is impossible to decipher the current situation.

3.Security combination

Wi-Fi security standards and encryption methods can be set on the Wi-Fi router side.The most security combination is "WPA2 + AES".

However, if the old Wi-Fi router may not be able to select the latest security standards, when using a Wi-Fi router, set the most accurate combination of the selected security.。

4.How to strengthen security to Wi-Fi?

Wi-Fi security levels can be enhanced by performing the following methods:

4.1.Always change your ID and password

The ID and password of the Wi-Fi router may have a uniform value at the time of shipment or in the instruction manual.If you leave the initial setting, the vulnerability is high, so be sure to change it.

However, the password of the Wi-Fi router can be easily detected if it is a simple string.Rather than emphasizing "ease of remembering", a string without regularity.A character string that combines numbers, uppercase, lowercase letters, and symbols is recommended.Updating your password on a regular basis will increase the level of security.

4.2.Introducing security software

If you install security software on your computer, you can block suspicious access.It always monitors communication, so there is little worry about being accessed by a third party without noticing.Security software also has the effect of preventing virus infections and access to harmful sites, so install it early.

4.3.Utilize VPN communication

VPN communication is a technology that prevents third parties from accessing smartphones and PC information.Build a virtual line on the Internet so that only a specific person can be used.Even if the security of the Wi-Fi router is broken through, it does not allow access to smartphones and PC information.This VPN communication can be set from the smartphone or PC side.

4.4.Always use the latest firmware

The firmware is Wi-Fi control software and is updated regularly.The older firmware means that the security vulnerabilities are high.There are some attacks that abuse the firmware vulnerabilities and try to invade the network, so you should always keep them up to date.The firmware can be automatically updated, so be sure to check it.

4.5.Check the connected device

If you check the connected device, you can immediately notice when you connect to the network from a device you do not know.If an unknown device is connected to the network, change your ID and password to deal with it.

5.Be careful when using public wireless LAN

Some public wireless LANs have not taken security measures.Such a wireless LAN connection is very dangerous because a third party may be stolen for personal information on smartphones and personal computers.

In some cases, malicious third parties are intentionally flying public wireless LANs with weak security in order to invade smartphones and personal computers.When connecting to a public wireless LAN, be sure to check the provider and security.

6.summary

So far, we have introduced useful knowledge to enhance the security of Wi-Fi.

We now live with the benefits of the technology so that we can not live without using Wi-Fi in our daily lives.However, Wi-Fi is also a threat to our lives if there is a problem in security.

Keep this in your head and create an environment where you can use Wi-Fi safely and comfortably while referring to the security measures introduced in this article.