Trust & Security

Your data never has to leave your control.

By default we work inside your environment, under your security controls, using AI you have already approved. Where you choose to share extracts, they are minimized, isolated, encrypted under a key you hold, never used to train AI, and destroyed with a certificate when we finish.

Request our trust pack
Engagement tiers

You choose how much data leaves, if any.

Your security team picks the tier and approves the exact fields before any work starts. The safest data is data we never hold.

Tier ADefault

Inside your environment

We work on a device or virtual desktop you provide, signed in through your identity provider, using your approved AI service. We bring only our methods. Your data never leaves, and your controls apply to everything we do.

Tier B

Pseudonymized extracts

Customer names and personal data are replaced with codes before anything is shared. Pricing, inventory and operations analysis needs behaviour, not identities. You keep the key that maps codes back to names.

Tier C

Full extracts, your key

Extracts held in a dedicated Marso environment used by no other client, encrypted with a key you control and can revoke at any time, which makes the data unreadable.

Controls

Built in, not bolted on.

One environment per client

Every client has its own cloud environment. No shared storage, tools or knowledge base between clients.

Client-held encryption keys

Encrypted in transit and at rest. Your key unlocks the data, and revoking it locks everyone out, including us.

No AI training on your data

Enterprise AI services under commercial terms that exclude training. We never train or fine-tune a model on client data.

No internet for AI agents

Agents that touch client data cannot reach the internet. They read only that engagement's data and write only to its workspace.

Named access only

Only the people named in your data schedule, through single sign-on with hardware security keys, on company-managed devices.

Logged and destroyed

Every access and agent run is logged. All data is deleted within 30 days of close, with a signed certificate of destruction.

Competitive protection

Nothing you share can help a competitor.

The model doesn't learn

Your data never trains a model, by provider terms and by our contract. General-purpose models are used as they are, and the knowledge stays in the documents we hand you.

We don't carry it across

Our reusable assets are methods: code, prompts and templates with no client data in them. One client's data, findings or benchmarks are never used for another.

Conflicts are managed

No work for a direct competitor at the same time without written consent from both. Cross-client benchmarks only with consent, anonymized and aggregated.

In the contract

Every promise is enforceable.

We put these commitments in writing, and we are happy to work from your paper.

  • NDA before any information is shared, and a data processing agreement where personal data is involved
  • A data schedule for every engagement: exact fields, purpose, location, retention and deletion
  • No training on client data, and no reuse for any other client
  • A short, named subprocessor list, with notice and a right to object before any change
  • Breach notice within 24 hours of confirmation
  • Evidence and audit on request
  • Return or destruction within 30 days of close, with a certificate
  • You own every output made from your data
  • Cyber liability and professional liability insurance
For your security review

Everything your CISO will ask for, in one pack.

Before any data moves, we hold a short call with your security lead to choose the tier and approve the data schedule. The trust pack answers the rest.

Security overview

The three tiers, the architecture of a client environment, and how data flows through it.

AI use statement

Which models and services we use, under which terms, and how agents are controlled.

Contract and evidence

Standard commitments, the data schedule template, subprocessor register, policy summary and questionnaire answers.

Send us your security questionnaire.

We'll return the trust pack, and answer your own questionnaire if you have one.

Request the trust pack