Lesson 2: Privacy & Your Data

What You'll Learn

What can happen to the words and files you put into an AI tool
Which kinds of information you should keep to yourself
Simple, practical habits that keep you safe

What Happens to What You Type?

When you type a message into an AI chatbot, it does not just vanish after you get your answer. Depending on the tool and its settings, your message may be:

Stored for a while on the company's computers (servers), so the service runs and so the team can spot problems.
Reviewed by people in some cases, to check quality or fix issues.
Used to improve the AI, meaning your text might become part of the examples the system learns from later.

This is not a reason to panic. It is a reason to be a little thoughtful — the same way you would be careful about what you post publicly online. The golden rule is simple: treat anything you type into an AI tool as if it might not stay completely private.

What Counts as "Sensitive" Information

"Sensitive" information is anything that could harm you or someone else if it ended up in the wrong hands. A good habit is to never paste these into a chatbot:

Passwords and login details of any kind.
Financial details — card numbers, bank account numbers, your full date of birth.
Government IDs — passport, national ID, social security or similar numbers.
Health information about yourself or others.
Other people's private details — a friend's address, a coworker's phone number, private messages.
Confidential work material — anything your employer would not want shared outside the company.

If you would not write it on a postcard, do not paste it into a chatbot.

A Quick, Real Example

Say you want help writing a complaint to your bank. You do not need to include your account number, your full name, and your card details for the AI to help. You can simply write: "Help me write a polite complaint about a charge I did not recognize." The AI can draft the letter, and you fill in the private details yourself afterward. You get the help without handing over anything sensitive.

Simple Safety Habits

You do not need to be a tech expert to stay safe. A few easy habits cover most situations:

Read the basics. When you sign up, skim what the tool says about your data — most have a short, plain-language summary.
Don't paste secrets. If in doubt, leave it out, or replace real details with placeholders like "[my address]."
Check the settings. Many tools have an option to turn off "use my chats for training" or to delete your history. Look for a "Privacy" or "Data controls" menu.
Use a throwaway example. When testing something, use made-up names and numbers instead of real ones.
Be extra careful at work. Follow your employer's rules about which tools are allowed and what may be shared.

These habits take seconds and let you enjoy AI tools with real peace of mind.

Key Takeaways

What you type into an AI tool may be stored, reviewed, or used to improve the system — so treat it as not fully private.
Never paste passwords, financial details, IDs, health info, or other people's private information.
A few simple habits — skim the privacy basics, keep secrets out, and check your settings — keep you safe without slowing you down.