Actionable guidance (high impact, low effort)
These steps are realistic for UK SMEs without a dedicated security team.
How do you find out who is using AI at work?
1. Do a two-week “AI inventory sprint”: ask every team to list tools, use-cases, and the data types entered (client data, personal data, financials, credentials). Keep it blame-free to get honesty.
2. Check identity logs first: review Microsoft 365 or Google Workspace sign-ins for new third-party OAuth consents and unusual app access. Remove anything you do not recognise.
3. Separate personal from work use: require staff to use company accounts for approved tools only; block logins from personal emails where feasible.
What controls should SMEs prioritise for AI risk?
1. Turn on MFA everywhere (email first); it is one of the strongest defences against account takeover and business email compromise.
2. Create a simple “AI traffic light” rule:
* Green: public info, formatting, generic brainstorming
* Amber: internal process notes with no personal data
* Red: client data, personal data, contracts, credentials, anything regulated
2. Reduce data leakage by default: limit who can share externally, tighten mailbox forwarding rules, and use device screen locks and encrypted storage on laptops.
3. Add an incident mini-playbook: who to call (IT provider, insurer, key client), what to preserve (emails, logs), and when you must consider reporting under UK GDPR.
Authority and evidence (UK-relevant)
This approach aligns with what UK SMEs are repeatedly advised to do: focus on baseline controls that stop common attacks, especially strong authentication, secure configuration, malware protection, patching, and sensible access control. That is the heart of Cyber Essentials and maps cleanly to the “protect” and “detect” outcomes in the NIST Cybersecurity Framework without adding heavy bureaucracy.
From a compliance angle, the ICO expects “appropriate security” under UK GDPR. If staff are pasting personal data into unapproved AI tools, you risk losing control of processing, retention, and lawful access. The fix is not a 40-page policy. It is visibility, minimum controls, and proof you took proportionate steps.
Forward Looking
Run a 30-minute leadership huddle this week: agree your “red data” list, pick one approved AI tool, and set MFA enforcement for all email accounts. That single move combination typically cuts your UK small business cyber threats exposure fast, while keeping productivity gains realistic.
