AI WORLD HQWhat You Should Never Share With an AI Assistant: A Privacy Guide
A beginner‑friendly walk‑through that shows you which personal details to keep out of AI chats and how to clean up any accidental oversharing.
Hook: By the end of this guide you’ll know the three buckets of personal data that belong strictly offline, how to spot any of those details in your chat history, and what to do if you’ve already let an AI see them. It’s written for anyone who chats with tools like ChatGPT, Gemini, Claude or Copilot.
💡 Tip: tap a step’s number when you finish it — a green tick appears and your browser remembers how far you got.
- A device with internet access (phone, tablet or computer).
- An account on at least one AI assistant (e.g., ChatGPT, Gemini, Claude – the free tier is enough).
- About 5 minutes of uninterrupted time.
Spot the three privacy buckets
Open the AI assistant you use most and start a fresh conversation. On screen you’ll see a blank text box waiting for your prompt, and a “Send” button on the right. When you type, the assistant will start generating a reply beneath your prompt. If the layout looks different, look for a field that says “Ask anything” or a similar text‑input area. 💬 Example: “What types of personal information should I never share with you?” You’ll know it worked when the assistant lists three groups such as (1) identifiers (name, address, ID numbers), (2) financial details (bank accounts, credit‑card numbers), and (3) health or biometric data.
Scan your recent chats for those buckets
Go to the chat‑history screen – usually accessed by tapping a clock‑icon or a menu labelled “History”. You’ll see a list of past conversations, each summarised by its first line. Selecting a conversation opens the full exchange, where you can scroll through every message you sent. If you don’t see a clock‑icon, look for a three‑line menu and choose “Recent chats” instead. 💬 Example: type “Show me my last five messages” (many assistants support a simple request like this). You’ll know it worked when the assistant displays the recent prompts you entered, giving you a chance to review them.
Delete or redact any message that contains private info
In the opened conversation locate the message that holds an identifier, financial detail or health data. Most assistants let you tap and hold the message, revealing options such as “Delete” or “Remove”. Choose “Delete” and confirm when a pop‑up asks “Are you sure?”. If the option isn’t obvious, look for a trash‑can icon or a “Clear” button at the bottom of the chat. 💬 Example: after selecting the message, type “Delete this message”. You’ll know it worked when the message disappears from the chat view and the history no longer shows that content.
Turn off chat‑history saving (if your plan allows)
Open the settings panel – usually reached by tapping your profile picture or a gear‑shaped icon in the top‑right corner. The settings screen will list toggles like “Save chat history” or “Conversation storage”. Switch the toggle off; a brief note may appear saying the change applies to future chats only. On a free plan some assistants only let you “clear history” rather than disable it permanently, so look for a button that says “Clear all chats”. 💬 Example: “Turn off chat history”. You’ll know it worked when the toggle changes colour or moves to the “off” position, and the app confirms “Your chats will not be saved”.
Verify that nothing sensitive is being stored
Start a new conversation and type a harmless query such as “What’s the capital of Australia?”. The assistant will reply below the prompt. Then open the history again and check that only this new, non‑personal question appears. If older, private messages still show up, repeat Steps 2–4 for any that remain. 💬 Example: “Show my recent chats”. You’ll know it worked when the list only contains the recent, innocuous question you just asked.
Request a full data‑deletion if you think something slipped through
If you suspect you shared something the assistant cannot delete yourself (for example a piece of text buried deep in a long conversation), look for a “Help” or “Support” link in the settings menu. Most providers have a contact form or email address labelled “Data‑privacy request”. Send a short message stating “Please delete all personal data associated with my account [your email]”. On some platforms you may need to verify your identity first. 💬 Example: “Dear Support, please remove any personal identifiers from my account.” You’ll know it worked when you receive a confirmation email or a system message saying “Your request has been received”.
- Sharing full addresses or ID numbers: If you copy‑paste your home address, the assistant now knows a location you might not want stored. Fix it by deleting the message and turning off history as shown in Steps 3–4.
- Posting bank or credit‑card numbers: Even a partial number can be used for fraud. Remove the message immediately and contact your bank to monitor for any unusual activity.
- Assuming the assistant deletes data for you: Deleting a message only removes it from your view; the provider may still keep a copy on its servers. Always use the built‑in “Clear all chats” option or submit a formal deletion request (Step 6).
Open the AI assistant you use most, find the settings gear, and toggle off the “Save chat history” option. In under two minutes you’ll have taken a solid step toward keeping your private information out of AI‑generated archives.
❓ Quick questions
How long does this take?
About 6 minutes — the guide has 6 steps, and you can tick each one off as you go.
Do I need to prepare anything?
- A device with internet access (phone, tablet or computer).
- An account on at least one AI assistant (e.g., ChatGPT, Gemini, Claude – the free tier is enough).
- About 5 minutes of uninterrupted time.
What mistakes should I avoid?
- Sharing full addresses or ID numbers: If you copy‑paste your home address, the assistant now knows a location you might not want stored. Fix it by deleting the message and turning off history as shown in Steps 3–4.
- Posting bank or credit‑card numbers: Even a partial number can be used for fraud. Remove the message immediately and contact your bank to monitor for any unusual activity.
- Assuming the assistant deletes data for you: Deleting a message only removes it from your view; the provider may still keep a copy on its servers. Always use the built‑in “Clear all chats” option or submit a formal deletion request (Step 6).
Keep reading
📬 The week’s AI, in your inbox
One friendly email every Sunday — the 5 stories that mattered, in plain English. No spam, unsubscribe anytime.
✦ Original step-by-step guide by AI World HQ's AI editorial team. Written in plain language, reviewed for accuracy.
← Back to all stories