AI tools are useful, but they're not your private diary. Whatever you type goes to a company's servers, and how it's handled varies. You don't need to be paranoid — just sensible. Here's how to use AI safely and avoid the mistakes beginners commonly make.
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The golden rule: don't paste secrets
Treat an AI chat like a postcard, not a sealed letter. Avoid pasting things like passwords, full bank or card numbers, government ID numbers, or other people's private details. If you wouldn't want it stored somewhere outside your control, don't put it in.
Understand what happens to your input
Many AI services may use conversations to improve their models, unless you opt out. Most major tools now offer settings to turn off training on your data or to delete your history. It's worth spending two minutes in the settings of whatever tool you use.
- Look for a "Data controls" or "Privacy" setting.
- Turn off "use my data for training" if you prefer.
- Clear your chat history periodically.
| Habit | Do this | Skip this |
|---|---|---|
| Secrets | Treat chat like a postcard | Passwords, card numbers, other people's private details |
| Settings | Open Data controls / Privacy | Leaving training-on-your-chats on if you dislike that |
| Work | Use the approved work tool | Pasting company files into a personal account |
| Accuracy | Verify health, legal, money and facts | Trusting a confident wrong answer |
Be careful at work
Don't paste confidential company information into personal AI accounts. Many employers have rules about this for good reason. If your workplace offers an approved AI tool, use that for work tasks.
Don't trust blindly
Safety isn't only about privacy — it's also about accuracy. AI can state wrong things confidently. For anything that matters (health, legal, financial, factual claims), verify with a reliable source. Our routine for this is in how to fact-check AI.
Protect kids and accounts
If younger family members use AI, set expectations together and check the tool's age guidance. And secure your AI accounts like any other: a strong, unique password and two-factor authentication where available.
The balanced takeaway
You can get enormous value from AI while staying safe. Don't paste secrets, check your privacy settings, stick to reputable tools, and verify important answers. Do those four things and you've handled 95% of the risk. For more common slip-ups, see 9 common AI mistakes beginners make.
