Legal professionals face a fundamental tension with AI: the most powerful tools require uploading documents to remote servers, creating real risks for client confidentiality and professional conduct obligations.
SecureThink resolves this by running entirely on your Mac. No files are ever transmitted — your documents never leave your device.
The Confidentiality Problem with Cloud AI
When you upload a client contract to ChatGPT, Claude, or any cloud-based AI tool, that document is processed on servers owned and operated by a third party. Depending on your jurisdiction and the nature of the matter, this could:
- Breach legal professional privilege
- Violate your firm's data processing agreements
- Create risks under UK GDPR and SRA Code of Conduct obligations
- Expose commercially sensitive client information
The SRA has issued guidance reminding solicitors that professional conduct obligations apply to their use of AI tools. "Using AI" does not create an exemption from existing confidentiality duties.
How SecureThink Protects Client Data
SecureThink uses a local Retrieval-Augmented Generation (RAG) architecture. Documents are indexed and stored on your Mac, and all AI processing is performed by a local language model running via Ollama. There is no API call to an external service, no data transmission, and no logs held on a third-party server.
This means:
- Privilege is preserved — the AI never "sees" your documents in a way that leaves your device
- GDPR compliance is straightforward — no international data transfer, no third-party processor to manage
- Air-gap capable — works on a machine with no internet connection at all
Use Cases for Legal Professionals
Contract Review and Due Diligence
Import a data room of contracts and ask SecureThink to identify key clauses: indemnities, limitation of liability, change of control provisions, IP ownership, and exclusivity. It cites the exact page and paragraph, so you can verify every finding.
Transcription of Confidential Meetings
Record a client conference call or deposition and import the audio. SecureThink transcribes it locally, then allows you to query the transcript — extract action items, summarise key positions, or search for specific statements.
Case Research and Document Review
Import bundles, expert reports, or disclosed documents and ask natural language questions across the full dataset. Useful for large disclosure exercises where manual review is time-consuming.
Draft Document Analysis
Paste in draft agreements and ask SecureThink to compare against standard positions, flag unusual provisions, or identify missing boilerplate.
Cloud AI vs SecureThink: Compliance Comparison
| Consideration | Cloud AI (ChatGPT, etc.) | SecureThink |
|---|---|---|
| Files uploaded to remote server | Yes | No |
| Third-party data processor involved | Yes | No |
| Works offline | No | Yes |
| International data transfers possible | Yes | No |
| DPA/data processing agreement required | Yes | No |
Getting Started
SecureThink requires macOS 15, an Apple Silicon Mac with 16GB+ RAM, and Ollama installed. The Standard licence is free for a single device.
Read more about SecureThink on Medium — including a detailed walkthrough of a contract review workflow.