Blog · Digital Transformation & AI

Generative AI and company data: the security rules

Your employees already use AI assistants, often with personal accounts. Banning them does not work; ignoring it exposes customer data, offers and contracts. A few simple rules let you benefit without unnecessary risk.

Key points in 30 seconds

  • Classify data into three levels: public, internal, confidential.
  • Use business accounts whose terms exclude training on your data.
  • Never enter personal or confidential data in a consumer tool.
  • A one-page policy everyone knows beats an ignored ban.

The three main risks

  1. Data leaks: a contract, customer list or password entered in a consumer tool.
  2. Errors: an invented answer reused unchecked in a customer document.
  3. Non-compliance: processing personal data without a legal basis, contrary to applicable law (in Tunisia, the 2004 organic law on personal data protection; the GDPR for data of EU residents).

Classify the data

LevelExamplesAI use
PublicWebsite, brochures, published articlesAllowed
InternalProcedures, templates, anonymised minutesApproved business tools
ConfidentialPersonal data, contracts, prices, financial dataForbidden outside an approved, governed tool

Choose the right tools

The business plans of the main vendors (ChatGPT Enterprise or Team, Microsoft 365 Copilot, Gemini for Google Workspace) include contractual commitments on confidentiality and on not training models with your data. Check each plan's terms, data location and admin options before rolling them out.

The ten-line usage policy

Pair it with a short training session: most leaks come from lack of information, not bad intent.

Technical risks to know about

Setting up governance

Appoint someone responsible for AI use, often the IT manager or a member of management. They keep the list of approved tools, validate new uses, track incidents and update the charter. Plan a quarterly review of actual usage: what teams really do with AI is often different from what was planned.

Training teams

A two-hour session covers the essentials: what AI does well and badly, the three data levels, approved tools, checking answers and good habits. Add concrete examples from your business: drafting a client reply without pasting the contract, summarising a meeting without personal data, preparing an analysis from anonymised figures.

Checking an AI provider

QuestionWhat you need
Is your data used to train the models?A written contractual commitment that it is not
Where is the data hosted?The hosting region and subprocessors
How long is it kept?A precise retention period and the option to delete
Who can access it?The provider's and your administrators' access rules
Which certifications?For example ISO 27001 or SOC 2

What to do after an incident

  1. Identify the data exposed and the tool involved.
  2. Delete the conversation or file if the tool allows it, and revoke any access.
  3. Inform the designated person and, if personal data is affected, assess whether you must notify the competent authority.
  4. Inform the people concerned if necessary.
  5. Fix the cause: training, settings, change of tool.

Record each incident in a log: it is the best basis for improving the rules.

Balancing security and productivity

Banning AI does not protect the company: employees then use consumer tools with no control. The right approach is to provide professional tools suited to real uses, with simple rules. Time savings are significant in writing, summarising and analysis, as long as the framework is clear. See our guide on Microsoft Copilot for SMEs for an example of an integrated tool.

Getting support

An AI usage audit lists the tools in use, the data involved and the risks, then proposes a charter and a roadmap. It is often the first step of a wider automation project. Our AI and digital transformation support covers both.

The legal framework

Data protection rules apply to AI too. In Tunisia, the 2004 organic law governs the processing of personal data and requires declarations to the competent national authority. For data on European residents, the GDPR requires a legal basis, information for the people concerned and safeguards for transfers outside the EU. In the Gulf, several countries have adopted their own personal data laws. Before entrusting data to an AI tool, check with your legal adviser the rules that apply in your clients' countries.

Frequently asked questions

Can ChatGPT be used with company data?

Yes, with a business plan whose terms exclude training on your data, and under a policy that forbids entering personal or confidential data outside an approved framework.

Should employees be banned from using generative AI?

Bans are rarely respected. It is more effective to provide approved business tools, a clear policy and short training.

Which law applies to personal data used with AI?

The data protection law of the country concerned, for example the 2004 organic law in Tunisia, and the GDPR for data of EU residents.

Can you use free ChatGPT at work?

For public content, yes. For internal or confidential data, use a business plan whose terms exclude training on your data and allow account administration.

Should clients be told about AI use?

It is recommended when AI is involved in a deliverable or a client relationship, such as a conversational agent. Transparency builds trust.

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