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Is ChatGPT safe? Privacy and reliability explained

Is ChatGPT safe? Privacy and reliability explained

Is ChatGPT safe? ChatGPT is safe for most everyday tasks, as long as you keep two things apart: what happens to your data, and whether you can trust the answer. Those two questions are often treated as one, yet the risks and the solutions differ.

Data is about what you enter and who can see it. Reliability is about the content of the answer itself, because a language model does not check whether something is correct before it writes it down.

For general tasks such as writing, summarising and brainstorming, there is little to worry about. As soon as sensitive data or important decisions are involved, that picture changes.

The type of account you use (free, paid personal or business) also determines much of what is and is not sensible.

What happens to the data you enter into ChatGPT?

On a free or personal Plus account, the data you enter into ChatGPT can be used to improve the model, unless you switch that off yourself in the settings. On a business account, this does not happen by default.

ChatGPT is also a cloud service: everything you type or upload goes over the internet to OpenAI’s servers, as with any other cloud service. Your data is not sold on to advertisers, but it is stored somewhere other than your own device.

Can you trust ChatGPT as a source of information?

No, ChatGPT is not a reliable source in the sense that you can accept an answer without checking it. The model generates text based on patterns, not on verified facts, and can therefore hallucinate: present information that sounds convincing but is wrong.

That risk has nothing to do with privacy and applies just as much to harmless questions. A figure, a name or a reference to a source looks exactly as reliable in a ChatGPT answer whether it is correct or not. You cannot tell the difference just by reading it.

The same mechanism plays a part with images. Why an edited photo sometimes looks different from what you expected comes down to exactly the same unreliability, only visual instead of written.

What information should you never share with ChatGPT?

Never share passwords, a national identification number (such as the Dutch BSN), credit card details or medical records with ChatGPT. The same goes for client data, personnel data and internal company documents, unless you work with a business account set up for that purpose.

The rule of thumb is simple: do not type anything into ChatGPT that you would not put in a public document, unless you know for certain which account type you are using and what happens to the data.

Is there a difference in safety between free and paid use?

Yes, there is a difference in safety between free and paid use, mainly in how data is handled. Free and personal Plus accounts can use conversations for model training unless you switch that off, while a business account excludes it by default.

For occasional, non-sensitive questions this makes little difference. As soon as you regularly work with company or personal data, moving to ChatGPT for business is the step that actually reduces the risk, not a setting within the free account.

Since late August 2026, free and paid use have also differed in advertising. In 31 European countries, including the Netherlands, ChatGPT shows ads to Free and Go users, while Plus, Pro and Enterprise remain ad-free.

What is Temporary Chat and does it make ChatGPT safer?

Temporary Chat is a feature that does not save a conversation in your chat history; OpenAI keeps a copy for up to 30 days for safety checks. On free and Plus accounts, Temporary Chats are also not used for model training.

Think of it as an extra layer of protection, not a replacement for a business subscription.

For recurring work with sensitive information, a business account offers structural protection. Temporary Chat is mainly suited to a one-off sensitive question you do not want to appear in your regular history.

Is ChatGPT safe enough for business use?

Yes, ChatGPT is safe enough for business use with the right subscription and the right agreements, but not automatically with an ordinary personal account. A business environment excludes data use for training and offers admin features that an individual account lacks.

Does using ChatGPT comply with the GDPR and the AI Act?

Using ChatGPT does not automatically comply with the GDPR and the AI Act; that depends on how you use it. The GDPR requires you to be able to show that you handle personal data responsibly, and Article 4 of the AI Act asks organisations to take measures to support their employees’ AI literacy.

Both call for documentation, not just a setting you tick once.

Research by Ipsos I&O for Alert Online 2025, published by the Dutch National Cyber Security Centre (NCSC), shows that only about a quarter of employees in the Netherlands say their organisation has clear guidelines for generative AI, and that is exactly where things often go wrong.

The Dutch Data Protection Authority (Autoriteit Persoonsgegevens, AP) has also named AI as one of its focus areas for the coming years, so that documentation is becoming more important, not less.

Frequently asked questions about ChatGPT safety

Using ChatGPT safely is not only about your data: it also depends on how you secure your account and who has access to it.

Is ChatGPT safe for children?

ChatGPT is not intended for children under 13, and according to OpenAI’s terms of use, teenagers under 18 need permission from a parent or guardian. Parents can link their account to their teenager’s and then, among other things, set quiet hours or switch off image generation. According to OpenAI, these parental controls do not give access to the teenager’s conversations. If there are serious warning signs, OpenAI does send the parent a safety notification.

How do you secure your ChatGPT account?

You secure your ChatGPT account with multi-factor authentication, which you switch on in the settings under Security. OpenAI offers options including an authenticator app and a passkey, although the options vary by device and country. With a second step, someone who only has your password cannot get to your conversations. Also use a password you do not use anywhere else.

Can you have your data deleted from ChatGPT?

Yes, you can have your data deleted from ChatGPT by deleting your account in the account settings or through OpenAI’s privacy portal. OpenAI then deletes your data within 30 days, except for what it is legally required or permitted to keep longer. Deleting your account does not cancel a subscription through the App Store or Google Play; you cancel that separately on your phone. You can only reuse the same email address after 30 days.

How do you make sure your team uses ChatGPT safely?

You make sure your team uses ChatGPT safely by setting down three things: the right account type, a clear agreement on which data may and may not go in, and training so everyone knows that agreement.

A guideline that only exists in an email does not work as a guideline in practice.

LearnLLM’s AI training for teams builds that knowledge for each employee, with a certificate of completion for every participant. If you want to start on your own first, lay the foundation with the online AI Literacy Course.

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