Microsoft Copilot · Security Readiness
Copilot Security Readiness.
IronSights are Microsoft 365 Copilot security readiness specialists. Copilot is powerful — and that's exactly what makes it dangerous if your environment isn't prepared.
Copilot uses the same permissions as the user who asks the question. Oversharing, unlabelled data, and excessive permissions mean Copilot can surface confidential information to the wrong person. We close those gaps before you go live.
Our readiness programme
Four steps to environment readiness.
Copilot deployment without environment preparation is a data governance risk. Our programme works through the environment systematically before a single licence is activated.
Two to three weeks for most tenants. Evidence-based sign-off on completion.
Permissions audit
Map who can access what across SharePoint, OneDrive, Exchange, and Teams. Surface oversharing, orphaned accounts, and excessive admin rights.
Data classification scan
Scan your tenant with Purview to identify unlabelled sensitive data — documents, emails, and Teams messages needing protection before Copilot.
Label deployment
Deploy a sensitivity label taxonomy and auto-labelling policies. Copilot respects those labels when generating responses and summaries.
SharePoint cleanup
Revoke broad sharing links, remove stale external access, and restrict over-permissioned libraries. Copilot surfaces only what users may see.
What's included
Everything your environment needs before Copilot goes live.
Eight workstreams covering permissions, data classification, sharing governance, and access controls — with documented sign-off on completion.
Permissions & sharing audit
Full map of who has access to what across SharePoint, OneDrive, Exchange, and Teams. Oversharing identified and remediated.
Data discovery scan
Purview content scan identifying unlabelled sensitive data across your M365 environment before Copilot deployment.
Sensitivity label taxonomy
Label hierarchy designed for your organisation and deployed with auto-labelling policies for known sensitive data types.
SharePoint & OneDrive cleanup
Broad sharing links revoked, stale external access removed, over-permissioned libraries restricted.
Conditional Access review
Copilot access restricted to managed, compliant devices. MFA enforced for all Copilot users.
External sharing governance
Anonymous links and guest account sharing reviewed and restricted to prevent Copilot surfacing external-facing data internally.
Readiness sign-off report
Documented confirmation that your environment meets Microsoft's Copilot readiness checklist, plus IronSights additional hardening standards.
Ongoing data hygiene
Recommendations for maintaining data hygiene as your organisation grows and new content is created.
Why environment readiness matters
Microsoft 365 Copilot queries the data your users are already authorised to access. After years of ad-hoc sharing, those permissions are far too broad — and Copilot surfaces the problem immediately.
- Files shared with 'Everyone' returned in Copilot responses
- Unlabelled payroll or board papers surfaced to wrong users
- Departing employee files still accessible after offboarding
- Anonymous SharePoint links indexed and queryable
What you receive
Our readiness programme leaves you with a documented environment ready for Copilot deployment, evidence suitable for internal governance and audit, and a plan for ongoing data hygiene.
- Permissions and sharing audit report
- Sensitive data discovery scan results
- Sensitivity label taxonomy and deployed policies
- SharePoint and OneDrive cleanup summary
- Conditional access policy review
- Copilot readiness sign-off documentation
- Ongoing data hygiene recommendations
What good looks like
Copilot deployed safely, data protected from day one.
Four outcomes your organisation can demonstrate after the readiness programme completes.
No unintended exposure
Copilot can only surface what each user is genuinely authorised to access. Oversharing remediated, broad links revoked, and permissions tightened before the first query.
Data classified
Sensitivity labels deployed across your environment. Copilot respects label-based access restrictions when generating summaries, drafts, and responses.
Audit trail maintained
Every cleanup action and policy deployment documented. Evidence suitable for internal governance, board reporting, and IT audit.
Governance foundation
The permissions hygiene and data classification work done for Copilot readiness becomes the foundation for ongoing data governance. The environment doesn't revert.
Common questions
Copilot readiness questions answered.
Planning a Copilot rollout and not sure where to start? Contact us and we'll walk you through what preparation looks like for your environment.
Talk to a specialist →How does Copilot access data?
Microsoft 365 Copilot uses the same permissions as the signed-in user. If a user can access a file, Copilot can include it in responses. This means every permission problem in your environment becomes a Copilot problem. We remediate the permissions and classify the data before you go live.
How long does a readiness programme take?
Two to three weeks for most M365 environments. Larger or more complex tenants with significant sharing or legacy permissions take longer. We provide a clear timeline at scoping.
Do we need Microsoft Purview licences?
Some Purview capabilities used in the readiness programme require Microsoft 365 Business Premium or E3 as a minimum. Advanced features may require E5 or Purview add-on licences. We review your current licensing as part of the initial assessment and advise on the most cost-effective path.
What happens after the readiness programme?
We hand over the completed environment with documentation of everything done. We also provide recommendations for ongoing data hygiene as your organisation grows. Many clients proceed to a Purview managed service arrangement to maintain governance on an ongoing basis.
Can you help us deploy Copilot after readiness?
Yes. We can assist with the Copilot licence rollout, user onboarding, and initial governance setup following the readiness programme. Contact us at the scoping stage to include deployment in the engagement scope.
Planning a Copilot rollout?
Get your environment ready before you flip the switch.
Don't deploy Copilot into a permissions environment that wasn't designed for it. Our readiness programme takes two to three weeks and removes the risk before you go live.