patrick.net

More importantly, how can I use this to get free wifi at home?

Better article here:
http://www.telegraph.co.uk/technology/2017/10/16/every-wi-fi-device-risk-unprecedented-krack-attack-security/

The so-called “Krack” attack. Of course article fails to mentions how to implement this. Presumably they are referring to the practice of monitoring for a handshake than using another computer to kick something off the network and wait for it to automatically reconnect (hence asking for the handshake). But then you still have to use the handshake to determine the WIFI password. But I thought that was old news???

That method is old news, I actually read an infosec article about it over the weekend. For information purposes of course...

"Here's every patch for KRACK Wi-Fi vulnerability available right now"

"Microsoft says the Windows updates released on October 10th protect customers, and the company “withheld disclosure until other vendors could develop and release updates.”

While it looks like Android and Linux devices are affected by the worst part of the vulnerabilities, allowing attackers to manipulate websites, Google has promised a fix for affected devices “in the coming weeks.”"

"Mathy Vanhoef, the researcher who discovered the protocol vulnerability, said on his website that any device that uses Wi-Fi is probably vulnerable. That means a router, a phone, a laptop, a smart TV or even a Wi-Fi enabled refrigerator that uses WPA2 protocol could be susceptible.

Vanhoef said the attack works against all modern protected Wi-Fi networks, and that his team found during its research that systems powered by Android, Apple, Windows, Linux and others were all affected by “some variant” of the attacks.
***
While the security implications are grave, researchers believe attackers must be physically proximate to their victims, and extremely skilled in hacking. That makes attacks against individuals less likely, at least for now, than attacks against corporate targets, which transmit large amounts of payment information, experts said."