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Everyone · 5 min read

What never to share with AI

What happens to what you type, which settings to change, and how to keep personal data out.

What you type leaves your device

Cloud chatbots send your messages to the provider’s servers. With free and personal plans, conversations may be stored and — depending on the settings — used to train future models.

Never paste

  • Passwords, PINs, bank card numbers, one-time codes
  • ID numbers (EMŠO, tax number), passport or ID card scans
  • Health data of yourself or others
  • Other people’s personal data without their consent
  • Confidential work documents in a personal account

Check your settings

Most assistants let you switch off training on your chats and use temporary chats that are not kept in history. At work, use only tools your company has approved.

Replace, then ask

You rarely need real names for good help. Replace them with labels like [PERSON_1] before pasting — Clean before AI does this on your computer and puts the real data back into the answer.

Photos and files talk too

Phone photos can contain the exact GPS location; Word and PDF files the author and company. Remove this metadata before you share files with AI or anyone else.

Key takeaways
  • Treat a chatbot like a public place: share nothing you would not say there.
  • Switch off training on your chats and use temporary chats.
  • Replace names and ID numbers before pasting.
Try it

Paste a text with names and ID numbers and see it cleaned — locally.

Open Clean before AI →

Check yourself

  1. Which of these is fine to paste into a free chatbot?
  2. What can a phone photo reveal without you noticing?
  3. What is the safest way to get help with a letter about a neighbour?

Last reviewed: September 2026