"Shadow AI" is the use of AI tools at work without the knowledge or approval of IT and security: a personal ChatGPT account, a free summarising site, a browser plug-in that nobody reviewed. Surveys from analysts and security vendors keep finding the same thing — a large share of employees use AI tools their company has not approved, and many say they would keep doing it even if it were banned.
Why banning AI backfires
Blocking ChatGPT on the corporate network feels like control. In reality it pushes usage to places where you see nothing: personal phones, home laptops, private accounts. The data still leaves — you just lose the record of it. Meanwhile the teams that follow the rules fall behind the ones that don't.
The three questions you need to answer
Instead of "how do we stop AI?", the useful questions are:
- What data goes out? Customer data, contracts, source code, passwords?
- What is AI used for? Writing, analysis, programming, customer care — or personal use?
- Which tools and models? The approved ones, or anything people find?
If you can answer these with real numbers, you can make good decisions: which licences to buy, where to train people, which uses to encourage and which to stop.
From shadow AI to governed AI
- Allow the AI tools people already use — ChatGPT, Claude, Gemini, Copilot — but apply your rules to every message.
- Protect the data, not the tool. Block secrets and hide personal data before it is sent, so using AI stops being a data risk.
- Measure usage without spying. Classify each interaction by purpose and keep only the category, never the conversation.
- Guide at the moment of use. A short note from the company does more than a policy nobody reads.
How WALLIOO helps
WALLIOO Browser Guard applies your rules in the browser for every AI interaction, and WALLIOO Control shows which AI is used, by how many people and for what — work or personal, writing or programming — without anyone reading the messages. Shadow AI becomes something you can see, measure and steer. See all capabilities →
Frequently asked questions
What is shadow AI?
The use of AI tools at work without the knowledge or approval of IT and security — personal accounts, free websites, unreviewed browser plug-ins.
How can I find out which AI tools employees use?
Network logs show only part of it. A browser-level control such as WALLIOO Browser Guard sees each AI interaction where it happens and reports which tool was used and for what — without storing the conversation.
Should we block personal use of AI at work?
Usually a note works better than a block: allow it, remind people of the company policy at the moment of use, and measure how much it happens.
