Ask Charly Leetham
Science & Tech • Business
Our goal is to assist small to medium business owners use the power of the Internet as an avenue to market their organisations in an appropriate and cost-effective manner.

We assist small businesses to define and refine their processes, plan and build their web presence using current and emerging technologies.

We provide ongoing support and advice to assist businesses to
maintain and grow a crucial path to market and focus on growing your business
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Why Should Chrome’s Silent Gemini Nano Install Concern You? (2026/713)

If you use Google Chrome, there could be a hidden AI model sitting on your computer right now - and you were never asked or told about it. Google has been silently downloading Gemini Nano onto users’ devices, taking up storage, using bandwidth, and raising serious privacy questions.

In this episode, Charly covers:

✅ What Gemini Nano is and how it ended up on your device without consent
➡️ How Google profiled your hardware before deciding to push the download
⚡ The contradiction between Google’s “local processing” claims and their general AI privacy policies
⭐ Why having an AI model sitting alongside your personal and business data is a real concern

Your computer, your data, your choice. If Google will install AI without telling you, it is time to ask what else they are doing with your information.

Alexander Hanf’s full forensic analysis: https://www.thatprivacyguy.com/blog/chrome-silent-nano-install/

HOW TO CHECK AND REMOVE GEMINI NANO

BACK UP FIRST

1. Check whether the model is on your machine.

On Windows, open File Explorer and navigate to your AppData, then Local, then Google, then Chrome, then User Data. Look for a folder called OptGuideOnDeviceModel. If it is there and it contains a file around four gigabytes, you have it. On a Mac, check your Chrome profile directory for the same folder name.

2. To stop Chrome from downloading it again, you need to open Chrome and type chrome://flags into the address bar. Search for “Optimization Guide On Device Model” and set it to Disabled.

3. Restart Chrome, then go and delete the folder from Step 1.

On Windows, there is also a registry change you can make that blocks the download permanently through a policy setting, which is more reliable than the flags method. If you are not comfortable making registry changes yourself, ask someone who is - this is not something to guess at.

Book a Free 30 minute Breakthrough Session: https://askcharlyleetham.com/book-me
(1 per person only)


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Music and Credits to:
Paradise Found is covered under Creative Commons.
“Paradise Found”
Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
https://incompetech.com/music/royalty-free/licenses/

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Setting Boundaries Is Good For Business - Daily Dose Of Business Inspiration (2024/45)

Boundaries are important in life. Today we look at what that means in business.

00:04:34
August 07, 2026
Can You Trust a Hacked File’s Date? (2026/752)

When investigating a security breach, it’s best not to rely on the date of a compromised file. That date may not be the “source of truth” you think it is and it may derail your investigation.

There’s a number of reasons for that and Charly covers that in today’s episode:

✅ Why you can’t rely on the date of the file
⚡ Why a suspicious looking file date still may not confirm anything
⭐ What actually protects your site from compromise

You can’t ignore the file, but you certainly can’t trust it. What do you think?

Book a Free 30 minute Breakthrough Session: https://askcharlyleetham.com/book-me
(1 per person only)


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LinkedIn: ...

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August 05, 2026
How Do You Turn Off Google AI Scanning Your Gmail? (2026/751)

If you have a Google account, Gmail account, or Google Workspace account, Google has switched on a new AI feature and opted you in automatically. It scans your emails and attachments, which may include financial data, tax information, bank statements and health information.

Today’s Walkthrough Wednesday is about how to turn off Google AI scanning in Gmail, on both desktop and mobile, so you can make an informed decision about what these engines can access rather than being opted in without knowing.

In this episode, Charly covers:

✅ What the new Google AI smart features scan and why it matters
➡️ How to turn it off on desktop, step by step
⚡ How to turn it off on mobile, step by step
⭐ How to check and delete what Google has already tracked
❗ Why checking your privacy settings regularly matters

If you have never checked your Google privacy settings before, today is a good day to start. Watch the full walkthrough and make your own informed decision about what you allow Google’s AI to access.

...

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August 03, 2026
Can You Really Spot AI In Someone's Writing? (2026/750)

They reckon you can spot when AI wrote something, but is that really true? There's a checklist going around online that shows certain words, certain punctuation and certain phrases, that some maintain are indicators something was written by AI. Is that true though?

Watch todays episode and tell us what you think. Charly gets into it and dicusses things like:

➡️ How AI learned the words, punctuation and phrases
⚡ Some of the sources of the knowledge for that training
✅ What it costs us as writers to take the list "too seriously"
⭐ What you should consider if you do use an AI for your writing tasks

If you have ever second guessed a word in your own writing because someone called it an AI tell, this one is for you.

Do you agree or disagree with Charly?

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(1 per person only)


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