A step-by-step tutorial for securing your privacy on ChatGPT, Claude, and Google — before they use your information in ways you never agreed to.
Every time you have a conversation with an AI tool, share a document, or search online, companies are collecting data about you. They use it to train future AI models, serve you ads, build profiles about your behavior, and in some cases — sell it or share it with third parties.
Most of these settings are turned ON by default. That means every conversation you've had may already be in a training dataset. The good news: you can turn most of this off. This guide walks you through exactly where to go and what to click.
This takes about 15 minutes total. Do it now.
Do this from your computer browser. Go to chat.openai.com and log in first.
Log into ChatGPT on your desktop browser. Click your name or profile picture in the bottom-left corner of the screen. A menu will pop up — click Settings.
This is the most important section. Every setting you need is here.
Inside Data Controls, you'll see a toggle called "Improve the model for everyone." This is ON by default. When it's on, OpenAI uses your conversations to train future versions of ChatGPT.
That means everything you've typed — your business ideas, legal questions, financial situations, personal conversations — may have already been reviewed and used for training. Turn it off now and it stops going forward.
Also in Data Controls, you'll see options to Delete all chats. This removes stored conversations from your account. It does not guarantee removal from any training data already processed, but it clears your history going forward.
If there's anything in your conversation history you want to keep, copy it somewhere else before you delete. There is no undo.
ChatGPT has a Temporary Chat mode. When you use it, your conversation is not saved to your history and is not used for training. Think of it like an incognito window for your AI conversations.
Use regular chat for: research, writing, coding, creative projects that you want to come back to.
Under Data Controls, you can Export your data — this downloads a file with all your conversations and account information. You can also submit a data deletion request through OpenAI's Privacy Portal.
Go to Settings → Personalization → Memory to see what ChatGPT has "remembered" about you. You can delete individual memories or turn the entire feature off.
Do this from your computer browser. Go to claude.ai and log in first.
Log into Claude at claude.ai on your desktop browser. Look for your profile icon in the top-right corner of the screen. Click it, then select Settings.
Anthropic's privacy policy states that conversations may be used to train Claude. Claude.ai has a setting to opt out of having your conversations used for training. Look for the toggle related to conversation data and model improvement.
Claude Pro (paid) accounts have stronger privacy protections by default. Anthropic states that for API users and businesses, conversations are not used for training by default. Free consumer accounts have different defaults. Either way — go verify and opt out manually.
Claude has a Projects feature that keeps different work streams separate. This is also a smart privacy practice — by keeping sensitive topics in their own space (or not at all), you limit cross-contamination of information.
You don't have to tell Claude your real name, where you live, your specific employer, or other personally identifying details to get good answers. Give context, not identity. "A 52-year-old woman in a Midwest city" works just as well as your full profile.
In the left sidebar of Claude, you can see all your past conversations. You can delete individual conversations by hovering over them and clicking the delete icon, or look for a bulk delete option in Settings.
Claude has a memory feature that remembers things across conversations. Go to Settings → Memory to review what it has stored about you and delete anything sensitive.
You have the right to request access to or deletion of your personal data. Anthropic provides a privacy request form. Use it.
Google is in a class of its own. This section covers your Google Account, Search, Maps, YouTube, and Gmail. Start at myaccount.google.com.
If you use Gmail, Search, Maps, YouTube, Android, or Chrome — Google has a detailed profile of you that goes back years. This section is the most important one in this entire guide. Set aside 10 minutes for this one alone.
Open your browser and go to myaccount.google.com. This is the main dashboard for your entire Google account. Make sure you're signed in. Everything we need is here.
Click "Data & Privacy" in the left sidebar, then scroll to "History settings." You'll see Web & App Activity. This records your searches, websites you visit, and app activity across all Google products. Turn it off.
Choose to also delete your existing activity — not just stop new collection. That clears years of search history from their servers.
Still in History Settings — find Location History. Google Maps uses this to build a detailed record of every place you've visited. Turn it off, and when prompted, choose to delete existing location history as well.
Also go into your phone's Settings → Apps → Google Maps → Permissions → Location and change it from "Always" to "While using the app" or "Deny."
In the same History Settings section, find YouTube History. This includes your watch history and your search history on YouTube. Google uses this to build your interest profile for advertising. Turn it off.
Even if you leave history on for convenience, set it to auto-delete every 3 months. Go into each history setting and click "Auto-delete" → Choose "Keep for 3 months." Better than never deleting at all.
Scroll down in Data & Privacy to find "Ad settings" or go directly to adssettings.google.com. Find the toggle for "Personalized ads" and turn it off. This doesn't stop ads — it stops Google from using your data to target them.
Go to myactivity.google.com. This page shows everything Google has ever recorded about you. You can delete your entire history at once, or filter by date or product.
This URL takes you directly to the "Delete all time" option. Paste it in your browser and confirm the deletion.
Google's AI assistant (Gemini) has its own privacy settings. Go to gemini.google.com → click your profile icon → Gemini Apps Activity. You can turn off Gemini from saving conversations and review or delete past conversations.
Google's privacy policy states that human reviewers may read, annotate, and process conversations with Gemini AI tools to improve their products. Turning off Gemini Apps Activity limits but may not eliminate this.
Google lets you download all of your data through a tool called Google Takeout. This is eye-opening — most people have no idea how much is stored. Go to takeout.google.com and request a download.
Every email in Gmail, every search you've ever done, every location you've been, every YouTube video you've watched, every Google Doc, every photo in Google Photos, every app you've installed on Android, and much more. It's a lot. Look through it.
Every setting. Every action. One table.
| Platform | Setting | Where to Find It | Action | Risk if Left On |
|---|---|---|---|---|
| ChatGPT | Improve the model for everyone | Settings → Data Controls | TURN OFF | Your convos train future AI models |
| ChatGPT | Memory | Settings → Personalization → Memory | REVIEW & DELETE | Personal details stored indefinitely |
| ChatGPT | Sensitive conversations | New Chat → Temporary Chat | USE THIS MODE | Conversation saved to account |
| ChatGPT | Existing chat history | Settings → Data Controls → Delete all | DELETE | Historical data retained |
| Claude | Help improve Claude (training) | Settings → Privacy | TURN OFF | Conversations used for training |
| Claude | Memory | Settings → Memory | REVIEW & DELETE | Personal info remembered across sessions |
| Claude | Conversation history | Left sidebar → hover → delete | PRUNE REGULARLY | Sensitive conversations stored on servers |
| Web & App Activity | myaccount.google.com → Data & Privacy | TURN OFF + DELETE | All searches and browsing tracked | |
| Location History | myaccount.google.com → Data & Privacy | TURN OFF + DELETE | Every location you visit tracked | |
| YouTube History | myaccount.google.com → Data & Privacy | TURN OFF + DELETE | Viewing habits used for ad targeting | |
| Personalized Ads | adssettings.google.com | TURN OFF | Full profile used to target you | |
| Gemini Apps Activity | gemini.google.com → Profile → Activity | TURN OFF + DELETE | AI convos saved and reviewed by humans | |
| Full data download | takeout.google.com | DO THIS FIRST | You don't know what they have |
Settings are a one-time fix. Habits are permanent protection.
Give AI tools context, not identity. "A real estate agent in the Midwest" instead of your name, city, and brokerage.
For sensitive searches — legal, medical, financial — use an incognito window. It doesn't save to your Google account.
Settings reset. Companies update their policies. Put a calendar reminder for every 3 months to come back through this guide.
Firefox or Brave instead of Chrome. DuckDuckGo instead of Google Search for everyday queries that don't need Google.
On your phone, go to Settings → Privacy → Location Services. Most apps do NOT need "Always On" access. Change them to "While Using."