Do AI companies train on my uploads?

On consumer plans, sometimes, depending on settings. On business plans of the major vendors, not by default. But training is only one of the five risks above, and not the largest.

Is on-premise or EU-hosted AI the answer?

It helps with jurisdiction and retention, and for some sectors it is required. It does not help against wrong pastes or compromised accounts. Data minimisation stacks with every hosting choice.

Does replacing personal data hurt the AI's output?

Usually less than you'd expect, if placeholders are consistent. The AI reasons about structure and content, and for most tasks it doesn't matter whether a party is called Acme Corp or [ORG_01]. Replace data the task doesn't need. Leave amounts the model has to compare or calculate with.

Is ShareSafe.ai itself not just another upload?

Fair question, and the answer should be checkable, not believed: ShareSafe Free processes in the EU, does not keep your document as a file, gives you a processing receipt with every run, and with reversible replacement gives you the recovery key without keeping a copy. The route is documented on the security page.

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Can you give confidential documents to AI safely?

The short answer. Safer than people often think, but not without some preparation. On their business plans, the major AI providers don't train on business data by default. The real risks lie elsewhere: you lose sight of where the content ends up and how long it is kept, accounts can be taken over, and once you have pasted something you can't take it back. What helps most is replacing sensitive details before an AI service sees the document, such as people's names, client names, amounts and account numbers that the task doesn't need. The AI gets placeholders such as [NAME_01], and the real values stay with you.

→ Protect your document first

Where the real risk sits

Not where most people look. Ranked by likelihood:

Human error. The wrong file, the wrong chat, the full version instead of the cleaned one. Irreversible the moment you press enter.
Account compromise. Your AI chat history is a searchable archive of everything you ever pasted. A phished account exposes all of it at once.
Retention and logging you cannot see. Even with training off, content can persist in logs or conversation history. You cannot audit what you cannot see.
Vendor and jurisdiction changes. Policies change, companies get acquired, legal demands happen in other jurisdictions. Data you sent last year lives under next year's rules.
Model leakage. The famous fear, in practice the smallest risk on this list for business plans today.

Notice what this list means: the risk is mostly about what you send, not about which vendor you pick. Which is why the fix is on your side of the line.

The workflow that reduces most of it

Replace personal data before upload. Names, companies, account numbers and addresses become consistent placeholders. Replace data the task doesn't need. Leave amounts the model has to compare or calculate with. ShareSafe.ai processes the file in the EU and does not keep it as a file.
Review the before and after. You see what was found and add anything missed. This step catches the indirect identifiers that automation and people both tend to miss.
Work with the AI on the protected file. [NAME_01] stays [NAME_01] throughout, so summaries, comparisons and rewrites usually keep working. Check the answer for your task.
Put the real names back with your recovery key. With reversible replacement you get a recovery key (Identity Key); ShareSafe Free keeps no copy. The AI's answer contains placeholders; your key puts the real names back.

Placeholders replace personal data. Contract terms, trade secrets or medical content stay readable. In the review step you can select extra text and have it replaced too.

Now run the risk list again: a wrong paste exposes placeholders instead of names, a compromised account holds placeholders, unseen retention keeps placeholders. The risk did not go to zero. It went down.

What about ChatGPT Business and other business plans?

Business plans such as ChatGPT Business (formerly ChatGPT Team) and those of Anthropic, Microsoft and Google are real improvements: no training on your business data by default, admin controls, a business agreement. Use one if you work with AI daily. But a business plan changes what the vendor may do with your data. It does not change the fact that the raw data left your control. Minimising what you send works on every plan and every vendor, and it is a measure you can check yourself. More: ChatGPT Business and confidential documents.

FAQ

Do AI companies train on my uploads?: On consumer plans, sometimes, depending on settings. On business plans of the major vendors, not by default. But training is only one of the five risks above, and not the largest.
Is on-premise or EU-hosted AI the answer?: It helps with jurisdiction and retention, and for some sectors it is required. It does not help against wrong pastes or compromised accounts. Data minimisation stacks with every hosting choice.
Does replacing personal data hurt the AI's output?: Usually less than you'd expect, if placeholders are consistent. The AI reasons about structure and content, and for most tasks it doesn't matter whether a party is called Acme Corp or [ORG_01]. Replace data the task doesn't need. Leave amounts the model has to compare or calculate with.
Is ShareSafe.ai itself not just another upload?: Fair question, and the answer should be checkable, not believed: ShareSafe Free processes in the EU, does not keep your document as a file, gives you a processing receipt with every run, and with reversible replacement gives you the recovery key without keeping a copy. The route is documented on the security page.

ShareSafe.ai keeps raw files in the EU. Minimal retention. You hold the key. Try it with your own document →