Krack Vulnerability makes your WPA2 Wifi Key Hack...!
- Manthati Dheeraj - Security Consultant
- Oct 23, 2017
- 2 min read
KRACK Vulnerability, What You Need To Know ?

Security Researchers, found KRACK Vulnerability (or Key Reinstallation Attack) – a security flaw in the WPA2 protocol, which could see an adversary break the encryption between a router and a device, allowing them to intercept and interfere with network traffic.
Hacker finds a network they want to breach that uses WPA2-PSK, and waits for an individual to connect. This could be at a coffee shop, or an office. PA2-PSK is an encrypted connection that requires individuals to connect with a password (that’s what the PSK stands for, pre-shared key).When an individual connects to a Wi-Fi hotspot, long before they visit any websites, their laptop or phone will do something called a four-way handshake. This is a process that checks that the password the user has provided is correct, and establishes the encrypted connection between the router and the device.
Hacker interferes with the initial handshake between your device and the WiFi router in a way that allows the attacker to gain an ability to decrypt the traffic you exchange over WiFi. This means they’re able to do many, many bad things without even being on the network.”
“The attacker doesn’t even need to connect to the network – only to listen to the data you exchange with an access point and make their own packets back to change things on your system and the router.”
So, what kind of bad things? Obviously they’ll be able to intercept traffic. According to security researchers, depending on the router configuration, they’ll be able to modify and forge fake data, interfering with the content of non-secure websites.
Source : Thenextweb.com | Auth :Matthew Hughes
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