Safety: what not to share and what to check

Short and practical. Checked: 2026-06. This is not legal advice. If you are unsure, check the service policy and your organization's rules.

What not to put in a chat

• Personal data: full names, passport details, phone numbers, addresses, and someone else's medical information.
• Trade secrets and internal company documents unless you have permission.
• Passwords, payment-card details, and access credentials.
• Other people's confidential material, such as client contracts or correspondence. Be especially careful with any service where the data leaves your own environment.

The simple rule is to anonymize. Remove names and numbers. Keep the shape of the task. That is usually enough for the model.

Which service is safer for data?

For sensitive work, use a tool that runs inside your company's own environment, or a model you host yourself. Keep public services for general, anonymized work.

Always check what a service says it does with your data in its privacy policy.

Made-up answers: "confident" does not mean "correct"

AI can hallucinate. That means it can invent a fact, quotation, link, or number and present it in smooth, convincing language. So:

• check facts, numbers, dates, and links against a primary source;
• do not sign your name to something you have not checked;
• the more important the decision, the more carefully you need to check.

You are responsible for the result, not the model. AI is a tool and an assistant. It does not replace your judgment. That responsibility is part of what makes your work matter.

Done. Now choose a route: how AI changes my work or work through the book step by step.

Version: 2026-06-20.