WiFi is a wireless communication method on a network using Radio Frequency (RF) instead of wires or fiber optics. Data passes by encoding and decoding between the devices and router antennas using 802.11 standards, which have been created by the Institute of Electrical and Electronics Engineers (IEEE). Unlike wired connections, those standards for most WiFi communications between mobile phones, computers, gaming equipment, printers, home security cameras, and anything that connects to a wireless access point could be a widely open door for cyber attackers. If a hacker identifies any vulnerability, all the data and privacy are in an imminence threat.
Mostly WiFi connections in business places have given free access for the customers without having any assurance for the data or privacy of the users. If needed, a WiFi hacker can steal the data from those devices. The same thing can happen when using public WiFi connections. Mostly there are no secure passwords and data protection standards.
According to the security researchers, "KRACKs" (Key Reinstallation Attacks) is a group of multiple vulnerabilities that allow attackers to intercept and steal data transmitted across a WiFi network. Personal information that is regularly used over the Internet or stored on your connected devices, such as your ID/license number, Social Security number, credit card numbers, and more other information could be vulnerable. In case your WiFi password is hacked, you could lose them. This personal information might be used towards committing identity theft, such as accessing your bank or investment accounts without your knowledge.
The security researches have disclosed about another group of multiple vulnerabilities referred to as "Dragonblood." It impacts the WiFi Alliance's recently launched WPA3 (WiFi Protected Access 3), WiFi security, and authentication standard. These vulnerabilities allow an attacker within the range of a victim's network to hack the WiFi password and infiltrate the target's network.
According to the researchers, there are five vulnerabilities in 'Dragonblood' as a denial of service attack, two downgrade attacks, and two side-channel information leaks. The denial of service attack only crashes the access points; therefore, it is not that much important. However, the other four can be used to recover user passwords and infiltrate the network.
When hackers use older or insecure systems, it's called a downgrade attack. The password exchange system has flaws that allow retrieving of different network passwords. It's also possible to use weak algorithms that allow hackers to trick devices. In these side-channel information leaks, a smaller amount of information can be found of the passwords. With repeated attacks, the full password can be recovered eventually. This is how most users create the background to hack WiFi passwords by using insecure and old passwords.
Prevent the threat
In case you are using WiFi with your devices, make sure to update the software as soon as a new one is available. Don't neglect the notifications; most of the time, manufacturers fix bugs and patches focusing on new vulnerabilities. Also, users can install and use a reputable VPN on all their mobile devices and computers before connecting to any WiFi network, especially public or business connection. Only using HTTPS enabled and SSL verified websites would also be safer from this vulnerability. Also, don't ever permit search engines to remember your passwords; it would be opened the door widely to the treat.