AI and Data Privacy – What Happens to My Data?

You've tried ChatGPT, maybe asked a question or had it write a text. And then the thought crept in: What actually happens to what I type in there? Is someone reading along? Is it being stored? Could it be used against me?

Fair questions. The good news: you have more control than you might think. Let's take a closer look.

What happens when you type something into ChatGPT?

When you send a message to ChatGPT, your text is transmitted to OpenAI's servers – usually in the United States. There it is processed, a response is generated, and sent back to you.

Whether your text continues to be stored depends on which version you're using:

Similar policies apply to other AI services like Google Gemini, Anthropic's Claude, or Microsoft's Copilot. It's always worth checking the privacy settings of the service you're using.

GDPR applies to AI too

Many people don't realize this, but the EU's General Data Protection Regulation (GDPR) naturally applies to AI providers as well. If a company offers services in the EU, it must comply with European data protection law – regardless of whether the server is in San Francisco or Frankfurt.

Concretely, this means for you:

• Right of access: You can request to know what data is stored about you.
• Right to deletion: You can demand the deletion of your data.
• Right to object: You can object to your data being used for training purposes.
• Transparency: The provider must clearly explain what happens to your data.

Italy demonstrated in 2023 how seriously the EU takes this: ChatGPT was temporarily blocked there until OpenAI improved its data protection measures. Since then, OpenAI has added significantly more control options for European users.

What you should NOT type into AI tools

Even though the data protection situation is better than its reputation, there are things you should never enter into AI tools:

A good rule of thumb: Don't type anything into an AI that you wouldn't say out loud in a café. General questions, creative writing, summaries – all fine. But once it gets personal or confidential, err on the side of caution.

The EU AI Act – explained simply

Since 2024, the EU AI Acthas been the world's first comprehensive AI law. It's being implemented gradually and regulates what AI systems may and may not do.

The key points in simple terms:

• AI systems are categorized into risk classes: from “minimal” (spam filters) to “unacceptable” (social scoring systems).
• High-risk AI (e.g., in medicine, justice, human resources) must meet strict requirements: transparency, human oversight, error logging.
• AI-generated content must in many cases be labeled as such.
• Providers must disclose what data their models were trained on.

The law isn't perfect, and full implementation will take years. But it shows that Europe is taking the issue seriously and creating a framework that strengthens your rights.

Local alternatives – AI without the cloud

If you feel uncomfortable sending data to large US corporations, there are now alternatives. AI models exist that run entirely on your own computer – without an internet connection and without any data being sent anywhere.

Tools like Ollama or LM Studio allow you to run powerful language models locally. The quality is sufficient for many use cases, even if it doesn't quite match the largest cloud models.

For businesses, there are also European AI providers that operate their servers exclusively within the EU – an important point for anyone who needs to meet strict data protection requirements.

Conclusion

AI and data privacy – the topic is legitimate, but no reason to panic. The GDPR already protects you today, the EU AI Act is expanding that protection further, and you yourself decide what information you share with AI services.

The most important rules are simple: don't enter sensitive data, check the service's privacy settings, and use local alternatives when needed. If you keep these in mind, you can use AI tools with peace of mind.

You have more control than you think. Use it.