By Craig McLean | 27 November 2025
Shadow IT refers to any unsanctioned or unmanaged technology used within an organisation without the knowledge of the IT department. In the past, this might have been a file-sharing app or a personal email account. Today, it is often AI tools. Employees want to work efficiently, solve problems quickly and deliver results. Public AI platforms promise exactly that. But they are not designed with your organisation’s security in mind.
Every time someone enters confidential information into a public AI model, that data can be stored, cross-referenced or even exposed outside the organisation. For organisations, who handle regulated and high-value information, the consequences can be catastrophic, with compliance breaches, reputational damage and complete loss of client trust.
Artificial intelligence is changing the way businesses operate. For example, tools like ChatGPT and other large language models (LLMs) promise instant answers, faster content creation and smarter decision-making. For organisations with remote or decentralised teams, these capabilities can feel indispensable. Yet behind the convenience lies a growing risk that many businesses underestimate: data security from shadow IT.
Picture a financial services firm, let’s call them Parker & Wells, who have employees working across multiple locations, client visits and remote working. Keen to improve productivity, they start exploring AI. Before they can implement a secure solution, employees begin using public AI tools to speed up tasks. It seems harmless at first, until someone pastes sensitive client data into a chatbot. That information does not stay within the company. It is retained by the AI provider, creating a compliance nightmare and a reputational risk that could cost millions.
However, this scenario is not unique. It is the reality of shadow IT in the age of AI.
Imagine Parker & Wells has teams spread remotely across five countries. Without the physical boundaries of an office, enforcing security policies becomes harder. Employees feel disconnected from central IT governance and start seeking their own solutions. This decentralisation creates blind spots, and blind spots are where breaches happen.
For organisations managing sensitive transactions, these blind spots can be devastating. As an example, a single data leak could expose confidential financial information, damage client trust and attract regulatory scrutiny. In industries where reputation is everything, the cost of a breach goes far beyond fines. It erodes confidence, undermines relationships and can take years to repair.
One of the most common questions we hear is: “If we buy the business version of ChatGPT, is our data safe?”. The short answer is, “You need to check”. These platforms still operate on public models, meaning your data can be stored and potentially used to train algorithms. However, while some providers offer enhanced privacy controls, they do not provide the same level of security as a fully integrated, enterprise-grade solution. In summary, businesses that need robust protection should realise that relying on public AI is a risk they simply cannot afford.
| Public AI | Centralised AI |
| ❌ Open model architecture
❌ Data retention risk ❌ Limited compliance controls ❌ No visibility or governance ❌ Potential reputational damage ❌ False sense of security with paid tiers |
✔️ Secure environment
✔️ Enterprise-grade compliance ✔️ Full visibility and control ✔️ Integrated with existing systems ✔️ Enhanced productivity ✔️ Futureproof approach |
So, what is the alternative? Centralised AI solutions. If Parker & Wells adopted a tool like Microsoft Copilot within a controlled environment, their businesses will unlock the benefits of AI without compromising their security. The centralised platforms will keep data inside their organisation, applying guardrails that prevent external access and reduce the risk of leaks. Whilst giving their IT team visibility and control, ensuring compliance and peace of mind.
Centralised AI does not just protect your data, it enhances productivity in ways that public tools cannot. Integrated solutions work seamlessly with your existing systems, enabling employees to access insights without leaving the secure environment of your business applications. This means faster workflows, smarter decision-making and a consistent user experience across the organisation.
At Bistech, we understand that adopting AI can feel complex, and we work with 100s of companies in the same position as Parker & Wells. That is why we make it simple, through our Managed Security services. For example, we combine advanced protection with proactive monitoring, while our expertise in Microsoft technologies ensures your AI strategy is both powerful and safe. Additionally, we work closely with your teams to design solutions that align with your business goals, giving you the confidence to embrace innovation without fear.
We do not just deploy technology, we help you build a framework for secure, sustainable AI adoption. From policy development to user training, we ensure every aspect of your strategy supports productivity and compliance. We ensure that your teams work smarter, your data stays secure and your business remains futureproof.
AI is here to stay. The question is whether Parker & Wells and companies like yours will embrace it safely. Public tools may offer convenience, but they come with risks that no organisation can ignore. By choosing a centralised, managed approach, you can harness the power of AI without compromising security. And with Bistech as your partner, the transition is seamless.
Talk to Bistech today and discover how our Managed Solutions can help you unlock the full potential of AI, securely, confidently and without complexity.
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