Rakoff makes two arguments against this:
- privilege was broken because Claude/Anthropic is a third party; but I don't think he successfully distinguishes Claude from say Google Docs/Translate/Gmail in this regard (he just notes that Google Docs isn't usually claimed to confer privilege on its own; but this is not the claim being made about Claude either); and see NYSBA ethics rules 820 and 842)
- he quotes Gould v Mitsui: documents do not "acquire protection merely because they were transferred" to counsel; but that same case says they do acquire protection if communicated "for the purpose of obtaining or rendering legal advice"