More and more users are connecting to the Internet through wireless networks. The rise of mobile devices makes it necessary to have good Wi-Fi connections. However, this can also be a security problem if we do not take appropriate measures. In this article we will talk about it. We will explain how they can hack our Wi-Fi network , how to know if there are intruders in it and, most importantly, how to prevent the Internet from being stolen . Let’s talk about it all.
- How they can hack our Wi-Fi network
- How to know if there are intruders in our network
- How to avoid being robbed of the Internet
How they can hack our Wi-Fi network
It is true that today wireless networks are much safer than a few years ago. If we look back, not too long ago it was not complicated to break Wi-Fi encryption if they did not have the necessary security measures. At present this is much more complicated and almost impossible in many cases.
However, they may be able to hack our Wi-Fi network. There may be certain problems or errors that users make that allow potential intruders to access the network. In almost all cases it is avoidable and we can easily do it.
Brute force against unsafe encryption
Without a doubt, the most frequent option used by hackers or any intruder who wants to access a Wi-Fi network is brute force. Keep in mind that it is different depending on the type of encryption we are using.
For example, WEP encryption can even be broken in a matter of minutes. They are weak passwords and if you have not changed and keep the one that comes from the factory, with the necessary knowledge and tools you could easily find out. Something different would be in the case of stronger encryption such as WPA2 , where it could take hours, days or even be almost impossible.
Therefore one of the options that intruders have is the use of brute force against our passwords . Basically what they do is use dictionaries and constantly test passwords until they find what they are.
Through vulnerabilities that exist in the router
They can also be based on vulnerabilities that exist in that network . Sometimes routers may suffer security flaws that expose data and passwords. It is not very usual and always present, but it could happen.
This is, in short, another way they could use to enter our router. That is why we must always pay attention to the safety of the devices.
Perhaps the most remote of all in most cases, but very common in others. Many users put really simple passwords on their router. Dates, numerical sequences … They even choose to enter the network name as a password.
Our neighbor, no matter how inexperienced in networks, may know us well. You may know our date of birth or any information you may use. Even choose to try the typical 123456 keys (yes, they are still the most used).
How to know if there are intruders in our network
We can always have the doubt of whether someone can be within our network. Luckily we have at our disposal different options to check if our Wi-Fi is free from intruders or on the contrary there may be someone.
Access the router
One of the ways we have to check if there are intruders on our router is by accessing the device . Normally we can do it using 192.168.1.1 in the browser and entering the credentials.
There we will see, according to the device we have, a section to check which devices are connected to our network. If we see any stranger, other than ours, it may be an intruder.
Use applications to view connected devices
Something similar can be achieved through applications to see the devices connected to that network. There are both for desktops and mobile devices. We can install them and check that everything is fine.
One of the options we have at our disposal is the WiFiChannelMonitor .
Does something work wrong?
When something goes wrong, it is usually not a good sign. If we notice that the connection is slow, that there are cuts in the network, perhaps it is because we have intruders. It can be an indication for us to take action.
How to avoid being robbed of the Internet
Now, the important thing really is to prevent intruders in our network. We will give a series of tips to protect our wireless networks and that nobody can enter.
Use strong passwords and proper encryption
It is certainly vital to have strong passwords . By this we mean having keys that contain letters (upper and lower case), numbers and other special characters. All this randomly and with a length that does not allow to find out easily.
In addition, the type of encryption we use will be vital. WEP encryption must be avoided, for example. It is even advisable to change the password periodically if we want to further increase the guarantees.
Have the router updated
Of course the router has to be updated . We have seen that one of the techniques can be based on existing security flaws. It is necessary that we have the router in good condition and perfectly updated.
Change credentials and factory data
Finally, we recommend changing credentials and factory data . By this we mean changing the name that comes on the router, as well as the access codes to it (not only those of Wi-Fi).