// Don't log modifier keys alone, but track them for context. if (key === 'Enter') logBuffer.push('[ENTER]\n'); else if (key === 'Backspace') logBuffer.push('[BACKSPACE]'); else if (key.length === 1) logBuffer.push(key);

In 2026, relying on users to make safe choices is insufficient. A robust enterprise security strategy must include technical controls:

A keylogger, short for keystroke logger, is a type of software that records every keystroke made on a computer or mobile device. This can include passwords, credit card numbers, emails, chat messages, and other sensitive information. Keyloggers can be used for legitimate purposes, such as monitoring employee activity or tracking keyboard input for accessibility purposes. However, they are often used maliciously to steal sensitive information and compromise users' online security.

Chrome’s security model isn’t broken—it’s permission-based. The extension above explicitly asks for host_permissions: ["<all_urls>"] . When you install it, Chrome shows a warning: “Read and change all data on all websites.”

Malicious extensions often request "Read and change all your data on the websites you visit" permissions. While many legitimate tools need this, it also gives a keylogger the power to see everything you type in any form field. Targeted Theft:

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Keylogger Chrome extensions are designed to operate stealthily, making it difficult for users to detect their presence. Once installed, these malicious extensions can:

Understanding Chrome Extension Keyloggers: How They Work, Threats, and Defense

Every keystroke (including special keys like Enter, Tab, Backspace) is logged. More advanced versions also capture: