Secure AI for SMEs: How to Use Copilot and Other Assistants Without Data Leaks

AI is now part of daily work

Teams are using AI assistants to:

• Draft emails
• Summarise meetings
• Create proposals
• Analyse spreadsheets

That’s helpful, but it introduces a new risk: people paste sensitive information into tools without realising what they’re sharing.

The 3 most common SME mistakes

1. No data classification
   • Everything is “just a file”, so staff can accidentally share client data widely.
2. Permissions sprawl
   • Shared folders where “everyone” can see too much.
3. No simple rules for prompts
   • Staff do not know what’s safe to paste into AI.

What “secure AI” looks like in practice

If you’re using Microsoft 365 Copilot, you need:

• Good permissions hygiene in SharePoint/OneDrive
• Sensitivity labels and DLP for key data
• Audit and retention so AI-generated content is governed like everything else

(These controls also help make Copilot more useful, because it surfaces the right information for the right people.)

A simple AI policy (copy/paste for your team)

Allowed

• Summarising internal meeting notes
• Drafting general emails without personal data
• Creating first drafts of documents using templates

Not allowed

• Pasting passwords, recovery codes, or client credentials
• Uploading contracts with personal data into consumer AI tools
• Sharing full client datasets or financial exports

Quick checklist

• [ ]  Decide which AI tools are approved
• [ ]  Tighten SharePoint permissions (least privilege)
• [ ]  Label sensitive documents
• [ ]  Create a one-page “safe AI prompts” guide

What Clyk can do

• Run a permissions and data exposure review
• Create a lightweight AI policy suitable for SMEs
• Set up guardrails so Copilot helps without oversharing

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