The summer vacation is here, and the issue of network security has once again attracted people's attention. Many parents have installed cameras that support WiFi connection for monitoring purposes in order to know the dynamics of children or the elderly at home. However, what cannot be ignored is that there have been cases of WiFi being cracked and child monitors being hacked. The most well-known in the world is the incident where Belkin child monitors were hacked and turned into eavesdroppers.
The cracking of the WiFi camera is only a signal that the smart home has been breached. In the past two years, as smart homes have become more and more popular, many families have begun to install and use them. The same as the above situation is that once the security system of the smart home is breached, hackers, let the air conditioner and temperature of your home become too high, and damage various equipment; the more serious one is to open your home directly and remotely. The door of your home, or conversely use a camera to monitor the condition of your home, and so on.
It cannot be said that with the intensification of networking, the issue of home wireless security has now been brought to the table. According to reports internationally, at the Defcon 2015 Hacking Conference, 25 previously unknown vulnerabilities of IoT devices were released, which can monitor various devices including smart scales, smart refrigerators, surveillance cameras, thermostats, baby monitors, etc.; What is nonsense is that after the Bluetooth connection system used in the Japanese Satis smart toilet is cracked, hackers can play pranks...
Does this mean that smart homes are not safe? In fact, this is not the case, but the safety factor has not been improved. Especially the carelessness in our daily behavior and equipment may make it possible for malicious people to invade. The most typical thing is that now all kinds of rubbing software are emerging in an endless stream, which seems convenient, but it may be the beginning of the breach of the home WiFi.
B. Buy good equipment
Be wary of wireless router vulnerabilities
A report issued by Rising said that the leak of home WiFi is actually related to the existence of major security vulnerabilities in wireless routers. Even well-known domestic and foreign brand routers such as TP-Link and D-Link may have vulnerabilities. These vulnerabilities can easily lead to the monitoring of the home or company network by others. Even some routers adopt a password encryption method in their firmware, which is displayed in plain text, which can be broken by hackers.
Prevention method
When installing the router, you must not only perform preliminary simple settings and modify the initial password, but also learn to check the router from time to time and refresh the firmware program. If necessary, replace the router in time.
C. Build a good gateway
Strengthen gateway control capabilities
In fact, the home WiFi itself also has great security risks. Among various wireless transmission protocols commonly used in homes, Bluetooth can only be used for simple wireless connections, while WiFi is widely used. Smart home products are basically through WiFi, especially in smart home systems, where electronic doorbells and cameras can basically only be used Use WiFi protocol or wired connection.
In terms of the characteristics of wireless technology, WiFi is easy to be broken by hackers. As long as the account and password of the device are obtained, the device can be controlled, and the networking capability is not enough. It is the ZigBee protocol connection that adopts a higher safety factor standard. The ZigBee protocol is 128-bit encryption, and its security is 12 times that of bank cards, which is relatively tighter. At present, some relatively complete home smart homes generally need to support ZigBee, and even the sockets require the ZigBee protocol. The user directly controls the camera socket, and the camera is powered on when needed to enhance security.
Prevention method
In addition to adopting high-security standard protocol methods, another security element is that the construction of the gateway requires management authentication, such as input verification, access control, and authentication.
In addition, the relevant data of networked terminal devices such as cameras should not be synchronized to the cloud as much as possible. Only connect to the gateway via WiFi, and the gateway and terminal devices are connected by the more secure ZigBee protocol. In this way, even if the WiFi is cracked, it is basically difficult to control the camera and other devices because there is no data from the terminal device such as the camera.
A. Develop good habits
Anti-rub network: password should be changed in time
The broken WiFi at home is the biggest hidden danger that causes attackers to enter. Usually, the attacker first cracks the WiFi shared password and enters the network. In fact, they use tools such as the WiFi master key to obtain your home WiFi account and password. Since some people share the password of a certain WiFi hotspot that they know to the cloud, and others can obtain the name and password of the network hotspot from the cloud sharing, the commonly known "Cengwang" is realized. Earlier, Xiaomi announced this feature in a previous flagship machine, but soon stopped mentioning it because the password sharing actually has security risks.
In the same way, if others know your home password and share it, it is easy to cause "crunching". Rubnet is not just a problem of free-riding a network channel, it is more likely to be maliciously invaded. Once the intrusion is successful, the camera may be controlled, various switches, etc., and even the smart home equipment of the family will be controlled, causing unimaginable consequences.
Prevention method
The main prevention method is password management. First of all, the initial management password of the WiFi router must be modified. The manufacturer's password cannot be used. The password must be changed in time after the setting is completed. Secondly, the password setting is also more complicated, making it difficult to guess. Whether it is a management password or a shared password, do not use simple number combinations or strings such as birthdays. It is better to use numbers plus letters, symbols, etc. It seems hard to find a regular password as well. Finally, you cannot easily reveal your own WiFi password. Even guests who come from home must be cautious. If they are told the password as a last resort, they must change the password in time, including changing the name of the hotspot, and change it irregularly every day to prevent Was rubbed net.
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