Your AI Chrome Extension is Stealing Your Data! Remove These Malicious Tools NOW

By CyberDudeBivash • October 02, 2025, 12:40 PM IST • Public Security Warning

The AI gold rush is on, and everyone wants the latest AI-powered tool to make their life easier. Cybercriminals know this, and they are flooding the Chrome Web Store with malicious extensions disguised as helpful “AI Assistants.” These extensions promise to summarize articles, improve your writing, or supercharge your browser. But in reality, they are sophisticated spies designed to abuse browser permissions and steal every piece of sensitive data you type and see—including your passwords, credit card numbers, and private messages. If you’ve recently installed an AI extension, your digital life could be at risk. This is our urgent guide to this threat, the list of known malicious extensions to remove, and the steps you must take to secure your browser immediately.

Disclosure: This is a public service security advisory. It contains affiliate links to security solutions that provide essential protection against these threats. Your support helps fund our public awareness efforts.

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Action Guide: Table of Contents

Chapter 1: Threat Analysis — How a ‘Helpful’ AI Assistant Becomes a Spy

The attack is dangerously simple because it exploits user trust and the powerful permissions model of browser extensions.

The Exploit Chain:

The Lure:** An attacker creates a Chrome extension with an appealing, AI-focused name like “AI Chat Summarizer Pro” or “Web Companion AI”. They may even use thousands of bots to give it fake 5-star reviews to make it seem popular and trustworthy.
**The Permission Grab:** During installation from the Chrome Web Store, the extension asks for a very dangerous permission: **”Read and change all your data on the websites you visit.”** Most users, eager to use the new AI feature, click “Accept” without understanding the implications.
**The Malicious Script:** This permission allows the extension to inject a malicious JavaScript file into every single webpage you visit—your bank, your email, your social media, everything.
**The Theft:** This injected script acts as a powerful keylogger and data scraper. It silently captures data from login forms, credit card fields, and private messages, and sends it to a remote server controlled by the attacker. It can also steal your session cookies, allowing the attacker to hijack your logged-in sessions and take over your accounts.

Chapter 2: THE HIT LIST — Malicious AI Extensions to Remove Immediately

Security researchers have identified a number of malicious AI-themed extensions. You must check your browser right now and remove any of the following if they are installed. This is not an exhaustive list, and any unfamiliar AI extension should be treated with suspicion.

🛑 AI Chat Summarizer v2
🛑 Google AI Companion Pro
🛑 PDF-to-AI Exporter
🛑 YouTube AdBlocker AI
🛑 SecureAI VPN Assistant
🛑 Web Page GPT
🛑 Text Enhancer AI

Chapter 3: The Defender’s Playbook — Your 3-Step Browser Security Checkup

Do this right now to secure your browser.

Step 1: Audit Your Extensions

In your Chrome browser, type **`chrome://extensions`** into the address bar and hit Enter. This will show you every single extension that is installed. Go through the list one by one.

Step 2: Remove, Don’t Just Disable

For any extension on the hit list above, or any extension that you do not recognize or have not used in months, click the **”Remove”** button. Do not just disable it; remove it completely.

Step 3: Review Permissions of Remaining Extensions

For the extensions you decide to keep, click on “Details” and review their permissions. Be highly critical. Does a “Color Picker” extension really need to read data on every website you visit? No. If the permissions seem excessive for the function, remove the extension and find a safer alternative. The Principle of Least Privilege applies to your browser too.

After you have cleaned your browser, you must assume your passwords have been stolen. Change the passwords for your critical accounts (email, banking, social media) immediately. This is also the perfect time to finally secure your accounts with the only un-phishable solution, as we explain in our **Ultimate Guide to Phishing-Resistant MFA**.

Chapter 4: The Strategic Response — The Principle of Least Permission

This wave of malicious extensions highlights a fundamental challenge in the browser security model. While the permission system is designed to inform users, most people experience “permission fatigue” and simply click “Accept” to get to the feature they want. This is a form of social engineering that attackers have mastered.

The strategic lesson for individuals and businesses is to adopt a **Zero Trust** mindset even for browser extensions. Do not trust an extension by default, even if it’s in the official store. Scrutinize its permissions. Limit the number of extensions you use to the absolute minimum necessary. Every extension you install is an increase in your personal attack surface.

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About the Author

CyberDudeBivash is a cybersecurity strategist and researcher with over 15 years of experience in malware analysis, browser security, and incident response. He provides strategic advisory services to CISOs and boards across the APAC region. [Last Updated: October 02, 2025]

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