Is it safe to put confidential work data into ChatGPT?

No, it is not safe to put confidential work data into the free or standard versions of ChatGPT, because your conversations may be reviewed by human trainers and used to improve the model. This isn't a theoretical risk. In 2023, Samsung employees accidentally leaked sensitive semiconductor data — including proprietary source code and meeting notes — by pasting it into ChatGPT for help with debugging and summarization. Samsung banned the tool internally within weeks. The core issue is data retention. OpenAI, like many AI providers, logs conversations by default unless you specifically opt out through the data controls in your account settings. Even then, the data still passes through their servers. For truly sensitive work, you need an enterprise plan with a contractual data processing agreement that guarantees your inputs won't be used for training. ChatGPT Enterprise, Microsoft Copilot with commercial data protection, and some business-tier AI tools offer this. But here's what most people miss: even with those protections, you're still sending data to a third-party cloud. Your company's security team might have strong opinions about that. A better approach for sensitive tasks is to sanitize your prompts — replace real customer names, strip out financial figures, and generalize the problem you're asking about. The AI usually doesn't need the real data to help you solve the problem. **Related**: How do I turn off chat history in ChatGPT? | What's the difference between ChatGPT Enterprise and the free version for privacy?