A web tool is a browser-accessible utility that lets a user send commands, actions, or input to another system. It may control software, query devices, or trigger automation without requiring a local client app. In the article context, the term refers to a browser-based interface that can drive a controller or device, showing how quickly a simple web page can reach into the physical world.
In cyber security, web tools matter because a browser front end can become a control surface. If authentication, session handling, origin checks, or input validation are weak, an attacker may abuse the tool to issue unauthorized commands, change settings, or pivot into connected hardware and services. Defenders also rely on web tools for device management, testing, and lab automation, but they must design them as sensitive interfaces, with strong access control, logging, and safe command handling.