Claude Desktop was exposed for secretly writing a backdoor file in the browser

According to Slow Fog CISO @im23pads's post on the X platform, Claude Desktop has been reported to secretly write a backdoor file into browsers. When users install the Claude Desktop application, it writes a special file to all Chromium-based browsers on the computer without the user's knowledge.

This file acts as a pre-authorized backdoor, which, when used in conjunction with specific browser extensions, can gain complete control over the user's browser.