Achilles Tsitroulis (Brunel University, UK), Dimitris Lamboudis (PAMAK, Thessaloniki) and Manolis Tseklevs (Lancaster University, UK) used the de-authentication method and observed that it is a major weakness in the structure of 802.11.
The researchers created an algorithm that performs a custom brute force attack to find the WPA2 password (the larger the password, the more time it takes) and they found that during the de-authentication process (reconnection and re-distribution of the security key to connected devices) there is a time window that a hacker or malware software could exploit.
They also identified ways that the attack could be carried out even more easily, quickly, and effectively. However, they did not stop there.
As the individuals themselves stated, their goal is not to breach WiFi or hacking, but to improve it so that an absolutely secure protocol can be created. For this reason, in their publication they discuss and reference ways the entire system can be effectively armored.
Until we see a new security protocol, it would be good to continue using WPA2 with the most complex password possible and at the same time declare the devices you want to have access via MAC addres
Source: tro-ma-ktiko.blogspot.gr
