Deauth Attack

A Deauthentication (Deauth) Attack is a type of Denial-of-Service (DoS) attack that specifically targets wireless networks. It works by exploiting how Wi-Fi devices communicate with one another, intentionally causing legitimate users to be disconnected from the access point. The attacker sends a flood of deauthentication (Deauth) frames to the targeted access point, effectively overwhelming it and forcing connected clients to disconnect.

How Does a Deauth Attack Work?

Deauth attacks take advantage of the management frames used in the 802.11 Wi-Fi standard. These control frames ensure efficient operation of communications between connected devices and include the authentication, association, and deauthentication subtypes. Since management frames are often not encrypted, attackers can easily generate and transmit fake deauthentication frames to force disconnections.

When a Deauth frame is received by a user’s device, it releases its connection to the access point, and the user must re-connect in order to reestablish data transfer with the Wi-Fi network.

Impacts and Consequences

Deauth attacks can cause the following problems:

How to Prevent Deauth Attacks

There isn’t a foolproof solution to protect against deauth attacks, particularly due to the inherent lack of encryption in management frames. However, you can take the following steps to reduce your risk:

As an author of this guide, I advise you to stay diligent and follow the best practices in order to safeguard your network from deauth attacks and other security threats.