ChatGPT is changing how we work—accelerating content creation, troubleshooting, brainstorming, and automation. But with this power comes a critical responsibility: protecting your data.
While OpenAI and similar companies have built-in safeguards, ChatGPT is not a secure vault. Everything you enter may be stored or used to improve future models. So before you hit “send,” consider what you’re sharing—and who else might one day see it.
Whether you’re a casual user or deploying AI at scale, here’s a simple rule of thumb:
If it’s sensitive, confidential, or personally identifiable—don’t share it.
Below are 15 types of information you should never enter into ChatGPT—or any public-facing AI tool:
1. Personal Identifiable Information (PII)
Avoid sharing your full name, address, phone number, email, or government ID numbers. These details could be exposed in rare data breaches or used to train future models. This includes your:
- Full name
- Address
- Phone number
- Social Security number
- Passport or driver’s license info
Even though OpenAI has safeguards in place, it’s not worth the risk. Inputs can be used to improve the model, and there’s no guarantee your data won’t be seen or retained in some form.
2. Banking and Financial Information
ChatGPT isn’t designed to process sensitive financial transactions. Never input:
- Credit card or debit numbers
- Bank account details
- Investment records or login credentials
ChatGPT isn’t designed for secure financial transactions or storage.
3. Passwords or Login Credentials
ChatGPT isn’t a password manager, and it can’t securely store or handle access credentials. Accidentally leaking login info—even in a casual query—can put your accounts and systems at serious risk. Avoid sharing:
- Login usernames or passwords
- Multi-factor codes
- Access tokens or API keys
4. Social Security Numbers or National IDs
Sensitive identifiers like SSNs, driver’s license numbers, or national ID codes should never be entered into a chatbot.
5. Medical Records or Health Information
Even if you’re seeking medical advice, don’t input specific personal health information. ChatGPT is not HIPAA-compliant and shouldn’t be used for storing or analyzing protected health data. That means:
- Health diagnoses
- Treatment histories
- Insurance numbers
- Any patient data
Even generalized health queries should stay clear of real patient information as it can pose privacy and compliance risks if mishandled.
6. Legal Documents or Sensitive Contracts
Avoid uploading or pasting in full legal documents, private contracts, or anything involving confidential business matters. ChatGPT isn’t a lawyer—and it definitely isn’t your legal department.
7. Workplace Secrets or Confidential Company Info
Leaking internal company strategies, client information, codebases, or product plans—even unintentionally—could violate your employment agreement or lead to legal consequences. Do not disclose:
- Client or partner names
- Business roadmaps
- Proprietary code or algorithms
- Internal communications or memos
- Product designs or unreleased features
Think of ChatGPT like a helpful—but very public—whiteboard. If it’s something you’d only share in a secure, access-controlled environment, it doesn’t belong in an AI chat.
8. Location Data
While it might seem harmless, sharing your current or past GPS locations, home address, or travel patterns may put your privacy—or safety—at risk.
9. Photos of IDs or Sensitive Documents
Even if you’re trying to extract text from an image, uploading pictures of your passport, driver’s license, or similar documents can expose you to identity theft. Avoid uploading scans or images of:
- Passports
- Drivers’s Licenses
- Insurance cards
- Employee badges
- Anything with barcodes or QR codes
10. Private Conversations or Messages
Respect others’ privacy. Don’t upload full transcripts, chat logs, or email threads that contain private information about yourself or others especially if they contain personal or professional information about others. Don’t share:
- Chat logs
- Email threads
- DMs
- Meeting transcripts
11. Biometric Data
Facial scans, fingerprints, voice recordings—these are highly sensitive and should not be shared with AI tools that aren’t specifically built for secure biometric handling:
- Facial recognition scans
- Fingerprints
- Voice samples
- Retinal data
Treat this data like a biometric password—it should never leave secure channel.
12. Security Questions and Answers
Don’t share answers to password reset questions like your mother’s maiden name, your first pet, or the name of your elementary school. Avoid entering answers to questions like:
- “Mother’s maiden name”
- “First pet’s name”
- “Favorite teacher”
These can be used to bypass security on sensitive account.
13. Proprietary Code
If your code is confidential or protected by intellectual property agreements, don’t share it directly in AI tools unless you’re using a private, secure enterprise version. If your code is protected under an NDA, internal policy, or copyright, don’t share it. This includes:
- Source code
- Client deliverables
- Academic assignments
- Algorithms or models
If it’s not your intellectual property—or if it’s under NDA—it’s best to keep it out of your prompts.
14. Academic Exams or Test Questions
Inputting test materials may violate honor codes and academic integrity policies. Don’t use ChatGPT to shortcut assessments.
15. Anything You Wouldn’t Want Public
As a general rule, If you’d be uncomfortable seeing your input on a public forum—or in a future AI model—don’t type it in.
Final Thoughts
While AI tools are powerful and convenient, they’re not private diaries. Practice digital hygiene by keeping sensitive, personal, and confidential data out of your interactions with ChatGPT. If you want to harness AI without putting yourself or your company at risk, here are some tips:
Regularly clear your chat history or disable history altogether.
Use anonymized or dummy data when exploring features or drafting examples.
Avoid inputting production data or anything covered by legal agreements.
Use secure, enterprise-grade AI deployments (like Azure OpenAI or private OpenAI API endpoints).
AI is an incredible accelerator—but it’s not a secure vault. Use it wisely.
If you’re working in a regulated industry or handling sensitive data, take extra precautions. Consider integrating AI in environments with built-in governance, auditability, and privacy controls.