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Confidentiality and Security

Consumer vs commercial tiers, training and retention settings, privilege rulings, litigation holds, anonymisation, local models, EU residency and vendor due diligence.

Start hereIs ChatGPT Confidential for Lawyers? The Tier-by-Tier Answer for ChatGPT, Claude, Gemini and CopilotIs ChatGPT confidential for lawyers? Consumer ChatGPT, Claude and Gemini train by default; Business and Enterprise do not. Tier-by-tier answer, with cases.16 min read →
  1. AI Vendor Due Diligence for Law Firms: 25 Questions and the Answers You Should ExpectAI vendor due diligence for law firms: 25 questions on training, retention, ZDR, subprocessors, residency, certifications and exit, with vendors' answers.9 min read
  2. ChatGPT Business vs Enterprise (and Claude Team vs Enterprise) for Law FirmsChatGPT Business vs Enterprise for law firms: training, retention, EU residency, zero-data-retention limits, the BAA and which plan to buy.13 min read
  3. Does ChatGPT Train on Your Data? How to Turn It Off in Every Tool (Lawyer Edition)Does ChatGPT train on your data? On Free, Plus and Pro, yes by default. Menu paths to turn training off in ChatGPT, Claude, Gemini, Copilot and Perplexity.8 min read
  4. Does Using ChatGPT Waive Attorney-Client Privilege? What Heppner, Warner and Morgan v. V2X Actually DecidedDoes ChatGPT waive attorney-client privilege? What Heppner, Warner v. Gilbarco, Morgan v. V2X and Jeffries decided, and the client warning for day one.10 min read
  5. EU Data Residency for AI in Law Firms: Where ChatGPT, Claude, Gemini, Copilot and the Legal Platforms Actually Process DataEU data residency for AI in law firms: where ChatGPT Enterprise, Claude via Bedrock or Vertex, Copilot, Legora, Harvey and Noxtua store and process data.10 min read
  6. How to Anonymise Documents Before AI: The Pseudonymisation Method for Client FilesHow to anonymise documents before AI: [PARTY_A] placeholders, a metadata checklist, Presidio, BRAK's abstract-prompt rule, and when it is not enough.9 min read
  7. NYT v. OpenAI and the Deleted ChatGPT Chats Order: What Lawyers Should Take From ItNYT v OpenAI forced OpenAI to keep every deleted ChatGPT chat for 136 days in 2025, Enterprise excluded: the timeline, the 20 million logs, the lesson.11 min read
  8. Running a Local LLM for Lawyers: Ollama, Hardware, and What You Give UpA local LLM for lawyers, honestly: Ollama set-up, Llama 8B vs 70B, the 40-48 GB rule, a $1,999 Mac mini, and why local models still hallucinate.9 min read

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