Can wifi Master Key really surf the Internet for free?

Can the master key unlock all wifi passwords? I think it is wishful thinking. . . This absolutely does not exist. In public places, when you open the wifi master key, you can often find more than a dozen wifi signals, two or three of which can be connected.

These wifi are not secure, but they can indeed be linked through a master key. Many people mistakenly think that they have cracked the password. Actually wool has nothing to do with wool. These passwords were obtained illegally.

Not to mention, the Internet, where everyone can access the Internet, is not safe at all. It's disgusting just to get the password!

The general process is as follows:

1. When users use the master key, they think they are browsing other people's networks. In fact, they have leaked all the wifi passwords stored in the mobile phone (yours, or your little uncle, aunt or girlfriend's) without the user's knowledge, and uploaded them to the server of the wifi master key, including the hotspot name (or the mac address of the device) and the password.

2. When someone wants to visit your home network one day, the system will match the relevant hotspot names and passwords in the massive database. If the match is successful (congratulations, become a living Lei Feng. . . ) can also be used by surfers.

3. In case the server can't find a matching password, try a simple method to crack it, and apply very simple passwords such as 12345678, 666666 and 888888. If all fails, I will tell you that there is no wifi available in the attachment. . . It won't give you an exhaustive method to crack it violently. .

This series of operations are bullying white people who don't know anything. As an internet company, it can really be a dog. .

However, the terrible thing is that we don't care about our privacy and personal information being leaked. . Inexplicable sales calls and spam messages seem to be numb!

Although the application of "WiFi master key" allows users to access the WiFi network that they can't connect without knowing the password, thus saving the traffic of their mobile network. But if you have never used the App, others can't connect to your WiFi through the "WiFi Master Key"; Even if you have downloaded the App, others can't connect to your WiFi through the "WiFi Master Key" until you "share WiFi".

WiFi information is leaked

In fact, "WiFi sharing" is not only that the player has used this "shared WiFi" application, but also that you told the guests who came to your home and then shared it with the "WiFi sharing" application on the other party's mobile phone. It is also possible that your WiFi password is too simple and shared after being quickly cracked by others.

At present, in addition to the "WiFi master key", we can also find many apps with functions and even interfaces very close to the "WiFi master key" in the mobile phone application market, and many of them will upload their own WiFi information and share it, which makes many users who use such applications reveal their WiFi passwords. Of course, it is also accompanied by all kinds of internet access.

The WiFi master key cannot unlock all WiFi. At present, most WiFi passwords are combinations of numbers, English and even more than 8 characters. If you rely on exhaustive methods to crack passwords, it may take decades to crack a complex set of 8-bit passwords. Therefore, it is almost impossible for normal passwords to be cracked by violence.

So how does the WiFi master key crack the password of Lao Wang's house next door? This kind of software actually has the following basic cracking schemes:

First, cloud data sharing.

If someone in Lao Wang's house next door has used software such as WiFi master key, his WiFi password and router Mac address will be automatically saved to the cloud server of the master key. When another person opens the master key and selects the WiFi name of Lao Wang's family, the master key will automatically find the WiFi password stored in the server through the Mac address of Lao Wang's router, so that even if it is not Lao Wang's family, it can be connected to Lao Wang's family's network through the master key software.

The way to prevent your router's WiFi password from being collected is also very simple, just uninstall the software such as the master key.

However, when guests are guests at home, it is inevitable that they will use the master key to connect to your WiFi, thus revealing the password. At this time, you need a router that can set the password of "temporary guest", which is generally available in intelligent routers. The role of "temporary visitors" is to separate the passwords used by the host from those used by the guests. When guests come home to connect to the internet, they only use the guest password. After the guests leave, the guest function is turned off in the background of the router. In this way, the master password will not be revealed, and even if the guest password is collected by the master key software, it is useless.

Second, the dictionary was cracked by violence.

Although the normal 8-bit WiFi password cannot be cracked by exhaustive methods, some users are too lazy to set too simple passwords, which gives this kind of software an opportunity. Master key software generally has a "password dictionary" built in, which contains many simple passwords that people often use, such as:

password

12345678

a 1234567

abcdefgh

Wait, this password is very simple. If the master key software cannot find the password of the corresponding router in the server, it will try these common weak passwords in the password dictionary first.

The way to deal with this cracking method is also very simple, just set the password a little more complicated, such as the combination of your pinyin initials+12345678, which is not only easy to remember, but also impossible for ordinary people to crack.

In addition, a slightly smarter router also has the function of "multiple password errors, refusing to connect". When the other party tries to crack the WiFi password with the master key for many times, once the number of errors exceeds a certain number, the router will disconnect the device and refuse to join again, which can also prevent the master key from using the "password dictionary" to crack the password at home.

Can the master key really unlock all WiFi passwords? It is out of the question. I don't know anyone else's. Let's talk about this universal WiFi I downloaded now. Sometimes it can be cracked, sometimes it can't be cracked. When someone else's password is simple, it can be cracked. No matter how complicated someone else's password is, it can't be cracked. I found that I can connect to public places as long as I use WiFi, but I don't even connect to WiFi if I have to pay for public places.

Crack? Nani?

The speed at which hackers crack WiFi passwords is directly related to the complexity of passwords, the "password dictionary" used by hackers, the computing power of computers and other factors. According to the current mainstream WPA/WPA2 encryption, the actual test results show that:

First, pure digital passwords are the weakest! Usually it can be cracked in 5 minutes. The more regular the number combination, the faster the decoding speed. For example, 12345678, 8888888 and other weak passwords are all in front of the password dictionary and can be broken in seconds.

Secondly, lowercase letters are combined, and most of them can be completed in 10 minutes. The best combination of lowercase letters to crack is also a common weak password, such as password, iloveyou or qwertyui (you can't understand it by looking down at the keyboard), and you can even run out of the password dictionary faster than some digital passwords;

Third, it is relatively difficult to crack mixed passwords such as "lowercase letters+numbers" and "uppercase and lowercase letters". If you encounter common passwords such as asd 123456, abcd 1234, you can get them in one hour. If it is a strange and unusual combination, it may take several hours;

Fourth, the most difficult to crack is the combination of "uppercase and lowercase letters+numbers+special symbols". In general, if it can't be cracked within a few hours, the hacker may give up. (Excerpted from Netease Digital)

Want to use the net? Wait for an hour first!

In addition, have you considered the legal risks faced by enterprises?

Wifi master key has three main channels to obtain wifi hotspots:

The first is the sharing of hotspot owners.

The second is self-built network (buying the traffic of operators).

The third is to cooperate with merchants (mainly to avoid unnecessary trouble to users)

The answer is: theoretically possible! It is impossible in reality.

First of all, let's talk about the principle of master key. The master key will first find out whether there is this WIFI on the server, and conduct data search according to the name and IP address of WIFI. If you find it, congratulations on getting the password. This is the quickest way. This method is common in some public places, such as WIFI in hotels or shopping malls. As long as someone has opened it with a master key, the password will be saved in the server. You can get the password directly in the future. Convenient and quick.

If the database can't find the password of this WIFI, then the master key will crash into the database, for example, he will use 12345678, abcdefgh and so on to compare one by one according to his algorithm until the password is correct. So when our password is not only numbers and letters, but also other special symbols, and then the number of password bits is set very long (for example, 18 bits, 32 bits), then the probability of cracking is very low. It may take years, decades or even hundreds of years to crack a password, and we basically think it is impossible to crack it. Of course, some routers have restrictions on the number of connections. If the device is connected incorrectly for many times in a row, you are not allowed to log in again.

Therefore, the more complex our security password is, the longer it is, the higher the security factor will be and the lower the probability of being cracked. Even if it can be cracked, it will be decades later, so the master key can't really unlock all WIFI passwords, only most relatively simple passwords.

In fact, there have been many related reports and articles on this issue, and I have done experiments myself, which prove that this master key can't unlock all WiFi passwords, but can only crack some simple passwords at most, and its main function is to share the passwords of the WiFi you have connected.

If you use this master key to connect to your home WiFi for the first time (of course, the premise is to enter the password), after the connection, it will automatically upload your home WiFi password to the cloud and share it with everyone, so that others can automatically connect to your home WiFi with this software. It's that simple. But it is precisely for this reason that people love and hate this master key.

People who like this software are of course people who love the internet. They can use the master key to surf the Internet for free anytime and anywhere. People who hate this software think it is a bit evil, and unconsciously let the WiFi password at home leak out, which is hard to prevent, which directly leads to the slow network card and seriously affects the experience.

Let's talk about some things we have encountered. In the past, people often came to work to ask for the WiFi password, so we told him, but in fact, I found that someone connected with the master key software, and of course, people nearby could surf the Internet for free. One day, the boss said that WiFi was too card, so he changed a very complicated password, but it soon failed. I said, it's no use unless you ask others not to connect this WiFi with a master key, but can they all understand this truth? Can you prevent others from using it secretly? It's really hard.

My mobile phone has a lot of traffic. If sometimes someone asks me to turn on a hot spot, I will give it to him. But you even use the master key. You tell him he doesn't understand. Great, everyone can use hotspots, and I don't know how the traffic is consumed. So as long as I suspect that someone has connected my hotspot with a master key, I will change my password immediately after I use it. Ok, that's all for today about this master key.

No matter what software is used to crack the wifi password, it is impossible to crack it 100%. The master key can crack the password, as long as it is a number, it is easy to crack. The neighbor's wifi password consists of two mobile phone numbers (22 digits), which was also cracked. Secondly, the password is preceded by several English letters, followed by several numbers. It may have been shared by others, but it was also cracked with a master key. In addition, the neighbor's wifi password must be a little more complicated, and it is a failure to crack it with the master key countless times. Download other password cracking software again, but it still can't be cracked. The master key has obvious disadvantages in cracking wifi passwords. If the other person is good at it, he can steal the software with the deposit account on your mobile phone. There is deposit software on the mobile phone, so try to use other people's wifi as little as possible, and don't use it often for a long time!

The master key can't unlock all the W I F I passwords!

However, there are indeed many mobile phone users who have downloaded the App!

It should be said that many times, in different places, users do get a lot of free networks!

But I also downloaded this App! But I just don't know how to use it!

In the process of use, it is ok!

At present, among the settings that come with the mobile phone, I think "connecting to the Internet" is also very useful.

When we usually connect to the free network, we are asked to enter a simple number when entering the network password. For example-123456789

You can always connect to the free internet.

The passwords of these free networks are the same as those of bank passbooks.

Use simple numbers as passwords.

For example, 0000000 00

666'66666

88888888

Method! Try again and again!

People often have some misunderstandings when using the master key. Let me list them one by one.

1, the wifi master key is the software to crack wifi. This statement is all wet. The master key is just a software to share hot spots. In short, users share their passwords to the cloud through the master key, and then if others meet the hot spots you share, they can connect with the master key. 2. The master key can only unlock the pure digital password. As mentioned above, the shared password can only be unlocked. Because the shared password can be arbitrary and varied. No matter numbers, symbols, English, case. As long as you have shared it and have a blue key after one-click query, you can unlock it. 3, connected to wifi, you can definitely surf the Internet. Not necessarily. Not every hot spot can go online. Some hotspots, such as CMCC, need mobile phone authentication to surf the Internet normally, some are connected with routers, but the owner is not connected with the network cable, or the network is busy.

4, the updated version can't understand the hot spots, and downloading the old version can solve it! What I want to tell you is that no matter which version of the master key is used, the cloud database is the same. If the version you are using can't be solved, then other versions can't be solved. So don't spend traffic downloading various versions. Because the master key database changes every day, new hotspots are shared every day, and naturally there are some invalid hotspots. Or the owner of wifi canceled the sharing of hotspots. Therefore, it is recommended that you back up the hotspots, either in your mobile phone with the wifi connection manager or in the cloud with the master key, just in case!