On an open or poorly configured network (like a coffee shop or some home setups), one person running a GitHub script could "kill" everyone else's connection just for fun or to hog bandwidth. The Lesson:
This command requires knowledge of the target network's MAC address, the client's MAC address, and the interface you're using. Replace [AP MAC] , [Client MAC] , and [Interface] with the appropriate values.
Wi-Fi uses management frames to handle connections. The is a legitimate command a router sends to a device to terminate its session. The problem? These frames are rarely encrypted, even on WPA2/WPA3 networks (except for protected management frames, or PMF).
Log into your router’s admin panel and ensure Protected Management Frames (PMF) or 802.11w is set to Capable or Required . This completely blocks modern hardware-based deauthers. Note that WPA3 networks have PMF enabled by default. 2. Use Static ARP Tables or ARP Inspection wifi kill github
: The tool sends fake Address Resolution Protocol (ARP) messages to the local area network.
In many jurisdictions, executing a de-authentication attack or an unauthorized ARP spoofing routine is legally classified as a attack. In the United States, for example, unauthorized execution of these scripts violates the Computer Fraud and Abuse Act (CFAA), carrying penalties that include steep fines and imprisonment. Aspiring cybersecurity professionals should strictly limit their testing to self-contained, isolated home labs or authorized enterprise sandboxes.
Another prominent repository by offers an ESP8266-based deauther written in Arduino C++. Its features include scanning nearby 2.4 GHz networks and clients, sending deauth packets, and performing mass probe request flooding to simulate fake clients. The project supports popular ESP8266 boards like NodeMCU and Wemos D1 Mini, and an optional web interface provides browser-based control. On an open or poorly configured network (like
The phrase is one of the most frequent searches among cybersecurity students, network administrators, and tech enthusiasts. Originally popularised by an Android application named WifiKill, the concept of kicking unauthorized users off a wireless network has evolved significantly. Today, GitHub hosts numerous open-source repositories that replicate, improve, and secure networks against these exact deauthentication techniques.
When exploring GitHub for these tools, repositories generally fall into three functional categories:
Firmware for the ESP8266 that allows users to scan for Wi-Fi devices, block selected connections, create dozens of networks, and confuse Wi-Fi scanners. The deauthentication attack is the main feature, and the project emphasizes that although this DoS attack is nothing new, many devices—especially cheap IoT hardware—remain vulnerable. Wi-Fi uses management frames to handle connections
GitHub hosts numerous open-source projects demonstrating these attacks. Broadly, these tools fall into two categories:
Security professionals use these tools legitimately for . A documented lab environment might involve:
To mitigate the ARP spoofing style of attacks (like original WifiKill or NetCut):
The following example (based on aircrack-ng suite) shows a basic command to deauthenticate a client using aireplay-ng , which might be found in discussions or documentation on GitHub: