How to know if my wifi is secure? They can hack me PC and remote cell phone

July 21, 2021, by Santiago Comment

The router or “wifi modem” is that small computer that provides Internet access at home, and when it does not have a secure internal configuration, it can not only allow neighbors to steal the Internet, but even hackers They can take control of the network and the computers or devices at home. Yes that includes that they can hack your PC, cell phone and other devices in your house remotely from the other side of the world.

A weak or insecure configuration can not only allow neighbors and strangers to discover the Wi-Fi key to steal the internet, but they can even obtain the access key to the settings of the router or modem itself to get full control over that network. There are programs and applications like Router Keygen (which has an Android version) or Reaver that allow you to do this without having to be an expert on this topic.

A simple android app What RouterCheck (that It can be downloaded for free at this link) allows networking novices to find out what security issues your home Wi-Fi router or modem has, and even know how to fix those issues. It is responsible for testing the security of the router’s password, the encryption used by the WiFi, if there are open ports, if it is accessible from the internet, determines if the configured DNS servers are safe and also checks if it is affected by other common vulnerabilities.

The application explains what each of these parameters means. The color of each block has a meaning: red = bad, yellow = caution, green = good, and blue = cannot be tested. For yellow or red blocks, it tells you how to fix that insecure configuration.

One of the most common security problems in most routers is that they maintain the default or factory password (such as 1234), which, for various reasons, has never been changed by the owner. RouterCheck tries to enter the router using the most common default passwords and the most used by people to test this aspect. If you get a blue color here, it is understood that the application could not enter, so the password is relatively strong.

Another problem that RouterCheck detects is if the option WPS is activated in the router or modem (something that is activated by the factory in most of these computers) and suggests deactivating it because this option, specifically the WPS PIN, it is vulnerable to brute force attacks that are used to easily obtain the router key with programs such as Reaver.

It also detects if the router has been affected by the malicious Trojan DNS Changer or it has other technical vulnerabilities that should be reviewed a bit (the application itself offers a lot of information about it) and that would be interesting to discuss in the comments section.

Descargar RouterCheck: Google Play

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