Checklist · Confidentiality & client information

Check before using a hypothetical in a generative AI tool (United States)

A check that a prompt is a true hypothetical under Rule 1.6 Comment [4]: no reasonable likelihood that the tool, or a later reader of the output, could identify the client or the situation.

Kind
Checklist. Steps or checks to work through and tick off.
Where it applies
United States
AI use
Yellow You and the tool draft together, with you directing. You check every statement you rely on.
Law stated as at
22 October 2026
Status
Maintained. Checked on 22 October 2026 against the 3 authorities it cites, for United States.
Version
1
Source
Written for this library

When to use it

Use before a lawyer puts a "hypothetical" into a tool that is not approved for information relating to a representation. If the check fails, do not input it. Get the tool-specific consent or do the work without the tool.

Used for these tasks

Each task page says how far AI may help with the task and what the lawyer must review.

How AI may be used

A tool may list names, dates, amounts and unique facts still present in a draft prompt. The lawyer decides whether there is a reasonable likelihood the client or the situation could be recognized.

AI may

  • Highlight proper names, docket numbers, exact amounts, addresses and rare facts in the draft prompt
  • Show a version with those items replaced by brackets, for the lawyer to edit

AI must not

  • Must not decide that the prompt is safe
  • Must not send the draft prompt to an external tool in order to anonymize it
  • Must not leave a unique combination of facts in the prompt because each fact, alone, is public

The lawyer checks

  • The lawyer, not the tool, signs that there is no reasonable likelihood of identification
  • The prompt was not run in the external tool before the check
  • If the lawyer cannot sign, the path is consent or no input, not a softer hypothetical

Method: how the Green, Yellow and Red levels are decided. This is guidance for planning, not legal advice.

Authorities

Read the full text

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