Understanding Wi-Fi network key reinstallation attacks

Contrary to popular belief, Wi-Fi networks contain vulnerabilities that hackers may use to monitor your internet activity. For the last 14 years, Wi-Fi networks have been assumed to be safe, but researchers have discovered a vulnerability in the current encryption methods employed. According to the researchers, when a hacker comes within range of your Wi-Fi network, they may infect it and the devices linked to it with viruses that give them access to your passwords, pictures you post online, and credit card information.

Krack attack

Wireless security experts have dubbed the vulnerability Krack, which affects different versions of Android, Microsoft Windows, and iOS software, and resetting your Wi-Fi password would not cure it. Due to the issue’s prevalence across all wireless networks, technology firms are trying to provide Wi-Fi network upgrades that address the problem. According to Alan Wood of the University of Surrey’s Center for Cyber Security, basic weaknesses seem to impact all Wi-Fi networks, putting you in danger of sabotage even if you follow all security standards.

Mathy Vanhoef, a researcher at Belgium’s renowned Leuven University, discovered a method to put a key that encrypts your transmission into the network, allowing intruders to access your data.

Wi-Fi encryption techniques of the modern era

The connection to a secure wireless network involves a four-way handshake between the device and the wireless router, which ensures that no one outside your network can intercept or decode the communications. Numerous contemporary Wi-Fi networks use WPA or WPA-2 encryption protocols, which have been in use since 2003. The protocol protects your data throughout its journey from your smartphone or computer to the router and prevents hackers from monitoring and infecting your networks with harmful malware.

Krack, on the other hand, does not affect connections to secure websites, such as those that begin with HTTPS in the URL. Professor Woodward believes that the only way to eliminate the risk is to replace all routers in residential and business buildings. However, experts are also investigating ways to fix routers as a way to circumvent the underlying vulnerability.


The good news is that new technologies will be developed to prevent cyber assaults. Hackers are always developing new tools that enable them to circumvent the latest encryption methods. The only thing you can do is monitor the progress being made by researchers in resolving this basic problem.

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