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Why Your Data Must Be Ready Before You Switch It On
Microsoft Copilot’s safety depends entirely on the Microsoft 365 environment it accesses. If SharePoint sites, Teams files, OneDrive folders, groups, permissions, guest users, and sensitivity labels aren’t properly managed, Copilot can expose existing data governance issues much faster.
At We Do Your IT Support, we help SMEs across the South West understand why Microsoft 365 data governance is critical before deploying Copilot. Proper governance lets your business harness AI safely without risking sensitive data or security breaches, all within the right business context.
Many businesses buy Microsoft 365 Copilot licences and activate them immediately, without checking if their data is organised and protected. Copilot adds value but isn’t a simple add-on, it reads your existing Microsoft 365 environment, so your permissions, data classification, and security policies must be in place first.
Rushing to use Copilot for faster summaries, better search, or content drafting can backfire. Copilot enforces existing Microsoft 365 security settings. If those are weak or outdated, Copilot will still follow them.
For example, if an old finance folder has “Everyone” access, Copilot could include that content in responses to users who shouldn’t see it. Copilot respects SharePoint, OneDrive, and Teams permissions but doesn’t judge if they’re still appropriate.
We often find unmanaged data: abandoned SharePoint sites, former employees still in groups, unchecked guest access, and widely shared links. These issues might remain hidden day-to-day but become security risks once AI tools can search and summarise content at scale.
This doesn’t mean Copilot is unsafe by design. It respects security boundaries, keeps user prompts and responses within your tenant, and doesn’t train public models on your data. The risk lies in the environment around Copilot, not Copilot itself.
“Copilot sees what you see” means it uses the access rights assigned to each Microsoft 365 user. If a user can access a SharePoint site, Teams files, OneDrive folder, or group, Copilot can use that data when generating answers. If not, it can’t.
Permissions across SharePoint, Teams, OneDrive, groups, and sharing links form the access picture Copilot operates within. If this picture is messy, so will be Copilot’s results.
Microsoft Entra ID is the identity and access foundation managing users, roles, groups, conditional access, privileged admins, and sign-in policies. Weaknesses here—like stale users, excessive admins, or poor MFA adoption—are inherited by Copilot since identity controls who accesses what.
For example, if an operations manager with access to a poorly protected SharePoint library asks Copilot to “summarise recent commercial risks,” Copilot might include unrelated HR or financial details. It’s following existing access rules.
Copilot integrates with Microsoft Purview data governance and logs all interactions in Purview Audit. This tracking provides actionable insights, helping admins monitor usage and detect overshared files, giving your organisation clear reports to reduce risk.
Most SMEs’ Microsoft 365 environments have grown organically, using Teams for projects, SharePoint for departments, OneDrive for sharing, and groups for collaboration, without strong governance or business context.
Orphaned SharePoint sites, with no clear owner due to staff changes or restructuring, are common. Without owners, permissions, sharing, lifecycle, and retention go unchecked.
Broad sharing links like “Everyone” or “All Company” are convenient but risky long-term. Teams’ connected SharePoint file stores add complexity. Files shared casually can create unintended access affecting Copilot.
Former employees and unmanaged guests often retain access. Suppliers or guests added for short projects might never be removed. These details slip through without regular reviews.
File duplication, outdated files, and unlabelled content worsen the problem. Without sensitivity labels, metadata, or retention policies, it’s hard to know which data is public, internal, confidential, or highly confidential.
of organisations can’t meet regulatory requirements partly due to poor Microsoft 365 governance.
This isn’t just an IT tidying issue, it’s a compliance risk. 47% of organisations can’t meet regulatory requirements partly due to poor Microsoft 365 governance. Copilot supports frameworks like GDPR and HIPAA but needs the right controls in place.
Good data governance creates a data-driven culture with curated content, clear ownership, and trusted information. Users collaborate confidently, admins manage risk, and leaders make informed decisions.
Data readiness means your Microsoft 365 environment is organised, permissioned, labelled, monitored, and governed before deploying Copilot widely. For most SMEs, this means following a clear checklist rather than fixing everything at once.
01
Review SharePoint sites, Teams, OneDrive, groups, guest users, external links, former employees, and admin roles using Microsoft Entra ID. Identify overly broad access, orphaned sites, and misplaced sensitive content.
02
Ensure users have only the access they need. Sales staff shouldn’t access HR files; guests shouldn’t access entire departments; admin rights should be limited.
03
Classify data as Public, Internal, Confidential, or Highly Confidential using Microsoft Purview data services. Apply labels manually or automatically. Mandatory labelling requires end users to assign labels before saving files. Labels can include dynamic watermarks and persist across devices.
04
Create policies to prevent inappropriate sharing. DLP detects sensitive data, restricts sharing, blocks risky actions, and warns users. Copilot respects these policies to prevent data loss.
05
Define rules for creating, naming, owning, reviewing, archiving, and deleting Teams, Groups, and Sites. Use lifecycle policies to manage storage and workspace disposition.
06
Verify every access request based on identity, device, context, and risk. Don’t trust users by default, even inside your network.
Microsoft Purview is the compliance and governance platform for Microsoft 365. It manages classification, sensitivity labels, DLP, audit, retention, eDiscovery, insider risk, and compliance.
Microsoft 365 Business Premium includes basic Purview features like manual sensitivity labels, standard DLP, audit, and retention. Many SMBs start here, but advanced classification, automatic labelling, enhanced DLP, and insider risk need extra licensing or additional services.
Copilot respects Purview sensitivity labels. If a file is labelled Highly Confidential and protected, Copilot honours those settings. Labels travel with documents into Copilot responses, maintaining protection.
Labels can be manual or automatic, e.g., detecting SSNs or financial data. Mandatory labelling ensures files aren’t saved without a label. Files keep label info across devices and apps.
DLP adds control by blocking or warning about risky sharing. Policies enforce rules consistently instead of relying on user memory.
Purview logs all Copilot interactions, helping admins track usage for compliance and generate reports with actionable insights.
However, Purview must be fully configured and enforced. Having labels or draft policies isn’t enough. Copilot readiness means live, tested controls that end users understand.
Purview handles classification and protection but doesn’t automate workspace lifecycle, ownership, or permissions cleanup. AvePoint Cloud Governance fills this gap.
AvePoint Cloud Governance automates Microsoft 365 lifecycle management: requesting, approving, creating, reviewing, archiving, and deleting workspaces.
It schedules automated workspace reviews to check ownership, guest access, sharing, and activity. Policy enforcement stops governance violations at scale.
AvePoint identifies orphaned sites, inactive Teams, unmanaged groups, and risky external access. It automates permissions reviews and guest user management, reducing IT workload. Department owners can manage their own workspaces within guardrails.
Lifecycle policies optimise storage by archiving or deleting inactive workspaces, lowering the risk of old content appearing in Copilot.
Classifies and protects the data itself.
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Manages the workspaces and permissions around the data.
Together, Microsoft Purview data governance and AvePoint provide a comprehensive governance model. Purview classifies and protects data; AvePoint manages the workspaces and permissions around it. This combination helps SMBs prepare Microsoft 365 for safe Copilot use.
Comprehensive Microsoft 365 data governance usually takes 6–12 weeks for SMEs. Quick fixes aren’t enough for secure Copilot deployment.
2–4
Weeks
Permissions Audit
Review sites, Teams, OneDrive, groups, guest users, external links, and admin roles using Microsoft Entra.
3–6
Weeks
Sensitivity labelling and DLP
Define labels, configure Purview, test auto-labelling, apply labels, and train end users.
2–4
Weeks
Workspace governance
Set naming, ownership, request processes, lifecycle, automated reviews, archiving, deletion, and delegated management. AvePoint Cloud Governance can automate much of this.
1–2
Weeks
Identity and access management
MFA, conditional access, privileged role reviews, and guest access improvements with Microsoft Entra ID.
Ongoing
User training
Essential for understanding permissions changes, sensitivity labels, external sharing, and responsible Copilot use.
Rushing governance risks exposing hidden data problems once Copilot is switched on. Our AI Security Pack accelerates implementation but prioritises secure foundations before AI adoption.
Copilot uses data and permissions already in Microsoft 365. If access controls are weak, Copilot may reveal overshared or sensitive content. Good governance protects data, customer info, employee records, and regulated content, while providing admins with audit logs and actionable insights.
Typically 6–12 weeks, covering permissions audits, sensitivity labelling, DLP, workspace governance, identity management, and training. Governance is ongoing, requiring regular reviews and policy enforcement.
It means users only have the minimum access needed for their role. Limiting access reduces risk of confidential data exposure, especially important with AI tools like Copilot.
Yes, it includes basic Purview features like manual sensitivity labels, basic DLP, audit, and retention. Advanced governance may require additional licensing or third-party services like AvePoint Cloud Governance.
AvePoint Cloud Governance automates workspace lifecycle, ownership, permissions, guest access, reviews, archiving, and deletion. It complements Microsoft Purview data governance by managing the Microsoft 365 workspaces where data lives, helping enforce governance policies at scale.
Book a Copilot security review with We Do Your IT Support to understand your business’s specific needs before switching on AI tools.
