Sanitize Personal Information in ChatGPT

Most AI tools are built on large language models, the technology behind tools like ChatGPT. Those models are trained on enormous amounts of text. After they launch, the companies behind them often keep improving the model by learning from how people actually use it.

That means the conversation you had, the document you pasted in, and the personal details you included for context, and depending on the tool and the account settings, your content can be used as training data.

Which sounds intense, but really it’s just this: your words could eventually show up as part of what the model “knows.” Not word-for-word in most cases, but the information gets absorbed into the system.

And here’s where it gets uncomfortable, for everyone.

When people think about data leaks, they think about getting hacked. Someone breaks in, steals a file, and sells it. That’s real, and it happens.

But with AI tools, you don’t have to get hacked for your information to leave the building. You just have to type or paste personal information into ChatGPT or another AI tool.

Your account could be compromised. Someone you share a device with could scroll through your chat history. Or the platform itself could have a data exposure incident (this has already happened with several AI providers). Once that data is in the system, you have no control over where it ends up.

The information most at risk is the kind people deal with every single day. Medical records. Your kid’s school files. Bank statements. A family member’s Social Security number you typed in to get help filling out a form. A landlord dispute letter with your home address. Business owners have all of that, plus client data and contracts on top.

Sanitizing your AI inputs is exactly what it sounds like. Before you paste anything into an AI tool, you remove or replace the sensitive parts to improve your AI data privacy.

Real-world example: you want help writing a letter disputing a medical bill. Instead of pasting the whole statement with your full name, account number, date of birth, and provider details, you swap those out first.

“Patient” instead of your name. “[Account number]” instead of the real one. “[Provider name]” instead of the actual clinic.

The AI still gets enough context to write a great letter. But if that conversation ever ended up somewhere it shouldn’t, there’s nothing in it that traces back to you.

It’s the difference between handing a stranger a document to proofread and handing them a redacted version. Same help. Much smaller risk.

You don’t have to be a business owner for this to matter.

People use AI tools to help write emails to their kids’ teachers, sort out insurance claims, understand lease agreements, get through confusing legal notices, and draft messages they’re not sure how to word. All of that involves real names, real relationships, and real personal details.

The risk isn’t just exposure of your information. It’s that you have no visibility into what happens to it afterward. You don’t know who else might access your conversation, what the platform does with it by default, or whether a future data incident at that company puts your details in the wrong hands.

The good news is that awareness is most of the fix. You don’t need to stop using these tools. You just need to know what to leave out.

You don’t need a policy document. You need a simple mental filter before you paste anything.

Ask yourself: if this conversation showed up somewhere public, would anything in it cause a problem?

It takes an extra thirty seconds. When in doubt, use a placeholder: [Name}, [Account], [address]. That’s the whole habit.

Every major AI platform has privacy settings, and most people have never looked at them.

On ChatGPT, you can turn off the setting that allows your conversations to be used for model training. It’s not on by default for free accounts. You have to go find it to improve your ChatGPT privacy. On the mobile app, it’s under Settings, called something like “Improve the model for everyone.”

Google’s Gemini and Microsoft’s Copilot have similar AI data privacy controls. They’re there. They’re just not front and center.

If you use these tools regularly, it’s worth ten minutes to find those settings and turn off what you don’t want turned on.

For business owners, this goes a layer deeper. When you’ve got a team of people using AI tools throughout the day, customer information, employee records, and financial data can end up in those conversations without anyone thinking twice.

Getting that right means knowing which tools your team is actually using, what the data settings are on those tools, and having a clear line around what’s acceptable to paste in and what isn’t. That belongs in the same conversation as your other security practices.

SC Network Solutions provides security awareness training so your team knows how to use these platforms safely and a straightforward risk assessment for businesses in our area. If you’re not sure where your team stands on this, that’s the right place to start.

No. It means knowing what to leave out. Most of the time, AI doesn’t need the specific details to help you. It needs context. You can give it context without giving it your name, your account numbers, or your address.

ChatGPT Plus (the personal paid subscription) is not the same as ChatGPT Enterprise. The enterprise tier has stronger data protections for businesses. If you’re paying for the personal subscription, you still need to check your data settings. You can opt out of training data use, but you have to do it manually.

The risk of sharing personal information in the wrong place isn’t new. What’s new is how fast and casually it happens now. People share more in an AI chat in five minutes than they might in a dozen phone calls. The volume is what changed.

Small things add up. A question about a medical symptom, a letter about a billing dispute, a message to a neighbor about a property line. Each one feels minor. But over time, those conversations contain a real picture of your life. It’s worth being thoughtful about what’s in them.