Introduction
What information should you never share with AI? This is an important question for anyone who uses AI tools in everyday life.
Tools can help you write emails, organize information, plan trips, learn new skills, and solve everyday problems.
But there is one important habit every beginner should learn: do not share information with an AI tool that should remain private or confidential.
When you type something into an AI chatbot, you are providing information to an online service. Different AI services have different privacy policies, security features, and data settings.
That does not mean you should be afraid to use AI. It simply means you should think before you type. Just as it is important to check if an AI answer is accurate, it is also important to think carefully about the information you give AI.
In this guide, you will learn what information you should never share with AI, what you can usually share safely, and how to remove sensitive details from a prompt before using it.
Why You Should Be Careful About Information You Share With AI
AI tools often feel like private conversations because you type a question and receive an immediate answer.
However, an AI chatbot is still an online service.
Depending on the service and your settings, information you enter may be stored or processed by the provider. Privacy practices can also differ from one AI service to another.
A useful beginner rule is:
If information would cause a serious problem if someone else saw it, do not put it into a general-purpose AI chatbot.
You can usually get the same help by removing identifying or confidential details.
1. Passwords and Login Information
Never give an AI tool your passwords.
This includes:
- Email passwords
- Banking passwords
- Social media passwords
- PIN numbers
- Security question answers
- One-time verification codes
- Account recovery codes
You do not need to provide your real password when asking AI for help with an account problem.
Instead of this:
“My email password is MyPassword123. Why can’t I log in?”
Try this:
“I can’t log in to my email account even though I believe my password is correct. What troubleshooting steps should I try?”
The AI can still help without knowing your password.
2. Credit Card and Banking Information
Do not enter financial account information into a general-purpose AI chatbot.
Examples include:
- Credit card numbers
- Debit card numbers
- Bank account numbers
- Routing numbers
- Online banking credentials
- Full payment information
If you want AI to help you understand your spending, remove information that identifies your accounts.
Instead of this:
“Here is my bank statement with my full account number. Help me create a budget.”
Try this:
“My monthly income is about $4,000. I spend approximately $1,500 on housing, $600 on groceries and transportation, and $500 on other expenses. Help me create a simple monthly budget.”
The second prompt gives AI the information it needs without revealing your banking credentials.
3. Social Security Numbers and Government ID Numbers
Never share highly sensitive identification numbers with a general-purpose AI tool.
Examples include:
- Social Security numbers
- Driver’s license numbers
- Passport numbers
- Tax identification numbers
- Government benefit identification numbers
AI does not need your real identification number to explain how a form or process works.
For example, you could ask:
“What type of information is usually required when completing this section of a tax form?”
That is much safer than uploading a document containing your full Social Security number.
4. Confidential Work Information
AI can be useful at work, but employees should be particularly careful with company information.
Do not paste confidential information such as:
- Internal company documents
- Customer information
- Unreleased financial information
- Trade secrets
- Private contracts
- Confidential meeting notes
- Proprietary source code
- Employee records
Your employer may also have specific rules about which AI tools you are allowed to use.
Before using AI for work, check your organization’s AI and data-security policies.
If you only need help improving some writing, remove confidential information first.
Instead of this:
“Here is our confidential customer contract. Rewrite it for me.”
Try this:
“Rewrite this sample paragraph from a business agreement to make it clearer. I have removed all company names, customer information, financial details, and confidential terms.”
5. Private Information About Other People
Privacy is not only about protecting your own information.
You should also protect information belonging to other people.
Avoid sharing another person’s:
- Home address
- Phone number
- Personal email address
- Financial information
- Identification numbers
- Private conversations
- Employee information
- Confidential documents
This is especially important when uploading documents, screenshots, emails, or spreadsheets.
Before uploading something, look carefully for information that could identify another person.
6. Sensitive Personal Documents
AI tools may allow you to upload PDFs, images, spreadsheets, and other files.
That can be very useful, but uploading a document can reveal much more information than you intended.
Be cautious with documents such as:
- Tax returns
- Bank statements
- Passports
- Driver’s licenses
- Insurance documents
- Legal documents
- Employment records
Before uploading a document, ask yourself:
Does AI really need the entire document to answer my question?
Often, the answer is no.
You may be able to copy only the relevant section and remove names, addresses, account numbers, and other identifying details.
7. Information You Are Required to Keep Confidential
Sometimes information is private because you have a responsibility to protect it.
For example, you may have access to confidential information through your employer, business, school, client, or another organization.
Do not assume that information is safe to enter into an AI tool simply because using AI would make your work easier.
Always follow the privacy, security, and AI policies that apply to your situation.
A Simple Test Before Sharing Information With AI
Before sending a prompt, stop for a few seconds and ask three questions.
Does AI actually need this information?
If the answer is no, remove it.
Can I replace the real information with a generic example?
Instead of using a real customer name, use:
“Customer A”
Instead of a real company name, use:
“My company”
Instead of a real account number, use:
“XXXX”
Would I be comfortable if this information were exposed?
If the answer is no, do not enter it into a general-purpose AI tool.
Learning how to write AI prompts that provide useful context without unnecessary personal details is one of the simplest ways to use AI more safely.
How to Remove Private Information From an AI Prompt
Suppose you want AI to improve this email:
“Hi John Smith, your account 12345678 has an unpaid balance of $742.18. Please contact me at 555-123-4567.”
AI does not need the real name, account number, or phone number to improve the writing.
You could change it to:
“Hi [Customer Name], your account [Account Number] has an unpaid balance of [Amount]. Please contact us at [Phone Number]. Please rewrite this email to sound polite and professional.”
You receive essentially the same writing assistance while sharing much less personal information.
This technique is sometimes called redacting or anonymizing information.
Before sending a prompt, review it for names, account numbers, contact information, identification numbers, and other details that AI does not need. Removing unnecessary sensitive information is a simple way to protect your privacy while still getting useful help from AI.
What Information Is Usually Safer to Share?
Many everyday AI questions do not require sensitive information at all.
For example, you can ask:
- “Give me five easy dinner ideas using chicken and vegetables.”
- “Explain compound interest in simple language.”
- “Help me write a polite thank-you email.”
- “Create a three-day itinerary for Chicago.”
- “Explain the difference between AI and machine learning.”
- “Help me organize my weekly schedule.”
These prompts provide enough context for AI to help without revealing passwords, financial account information, identification numbers, or confidential documents.
If you are new to AI, learning how to use AI for the first time can also help you understand how to provide useful instructions without giving an AI tool unnecessary personal information.
Privacy Settings Still Matter
Some AI services provide controls over how conversations and data are handled.
For example, ChatGPT provides privacy controls in ChatGPT that allow users to manage how their conversations are used, review or change Memory settings, delete conversations, and use Temporary Chat.
These features can give users more control over their information.
However, privacy settings should not replace good judgment.
Beginners should also learn how to protect your privacy when using AI before sharing personal information or uploading files.
Even when an AI service provides privacy and security controls, it is still a good habit to avoid sharing information that the AI does not need.
What If You Already Shared Sensitive Information?
First, consider what type of information you shared and which AI service you used.
Depending on the situation, you may need to:
- Delete the conversation or uploaded information when that option is available.
- Review the AI service’s privacy and data controls.
- Change a password immediately if you exposed one.
- Contact your bank or card issuer if you exposed financial credentials.
- Follow your organization’s security procedures if confidential workplace information was involved.
For ChatGPT specifically, OpenAI provides controls for deleting chats and managing how conversations are used.
The most important lesson is to change how you prepare prompts in the future.
AI Is Most Useful When You Share Context, Not Secrets
Good AI prompts often contain useful context.
But context and confidential information are not the same thing.
For example, AI may need to know that you are planning a five-day vacation for a family of four.
It does not need your passport numbers, credit card numbers, home address, or airline account password.
Learning how to ask AI better questions can help you provide enough context for a useful answer without revealing information that should remain private.
Final Thoughts
AI can be a valuable everyday assistant, but safe AI use starts with thinking carefully about what you type or upload.
Never share passwords, financial credentials, government identification numbers, confidential business information, or private information about other people with a general-purpose AI tool when that information is not necessary.
When possible, remove identifying details and replace them with generic placeholders.
A simple rule is worth remembering:
Give AI the information it needs to help you — but not information it does not need to know.
That small habit can make everyday AI use safer, smarter, and more responsible.