Chrome has been quietly downloading a 4GB AI model onto users' hard drives since at least April 2026. You didn't install it. You weren't asked. You may not have even known it was there. But if you use Google Chrome on a desktop computer, there's a reasonable chance that a 4GB AI model called Gemini Nano is sitting on your hard drive right now, placed there automatically by Chrome sometime between late April and early May 2026. Security researcher Alexander Hanff flagged the...
