You probably didn’t see it in your usual news feeds, but the NCSC published an alert earlier this year that deserves more attention from UK small businesses than it’s been getting. Following the escalation of conflict in the Middle East, the National Cyber Security Centre issued guidance warning UK organisations — including SMEs — to review their security posture. Iran-linked groups have been specifically identified as a threat to organisations with connections to the region, but the NCSC also flagged elevated risk more broadly through third parties and supply chains.
Here’s what the alert actually says and what you should do about it if you run a small business.
What the NCSC Is Warning About
The threat picture is two-pronged. There’s a direct threat from Iranian state-affiliated hackers targeting UK organisations, and there’s a wider indirect threat through supply chains and third parties. If your suppliers, partners, or customers have operations in the Middle East, you’re potentially in scope even if you don’t think of your business as having any regional exposure.
The types of attacks the NCSC flags include ransomware, data theft, and disruption attacks — particularly DDoS (distributed denial of service, which floods your internet-facing services with traffic until they fall over). These aren’t just theoretical. Computing.co.uk reported confirmed NCSC warnings about Iran-linked hackers actively targeting UK organisations, and the Lewis Silkin legal advisory firm noted the alert’s specific relevance to professional services firms with any client connections in the region.
For a small business, this might sound remote. But the practical point is that periods of geopolitical tension always see increased opportunistic attacks. Threat actors exploit the noise to run campaigns that might otherwise be caught faster. The NCSC’s advice isn’t panic-inducing — it’s a specific checklist of hygiene tasks, and doing them now is sensible regardless of the geopolitical context.
The Seven Actions: What They Mean for You
1. Review what you’re exposing to the internet. Think about what in your business is accessible from the public internet. That includes your website, any customer portals, your VPN if you use one, remote desktop tools, and any admin panels. The NCSC specifically highlights remote access systems and VPN entry points as targets. If you’ve got remote access tools that nobody’s used in six months, turn them off. If your admin panel is accessible publicly when it doesn’t need to be, restrict it to known IP addresses.
2. Tighten up identity and access. Multi-factor authentication needs to be on for everything that matters — email, cloud storage, accounting software, your website’s admin login. If you’ve got ex-employee accounts that haven’t been removed, remove them today. Privileged accounts (admin-level access) should be held only by people who genuinely need them. This is the one action that costs almost nothing and closes a huge proportion of common attack vectors.
3. Watch your logs for warning signs. You probably don’t have a security operations centre, fair enough. But if you’re using Microsoft 365, you have access to the audit log. Set up a simple alert for unusual sign-in activity — logins from foreign countries, multiple failed attempts, or MFA prompts being approved at 3am. Google Workspace has equivalent features. These take about 20 minutes to configure and will flag something suspicious if it happens.
4. Check your resilience against service disruption. For most small businesses, this means one practical question: if your website went down or became unreachable for a day, what’s the impact and what’s your plan? For e-commerce businesses, the answer might prompt a conversation with your hosting provider about DDoS protection, which is often available as an add-on. For businesses where the website isn’t critical, this is lower priority.
5. Refresh your staff’s awareness of phishing. Attackers running targeted campaigns always use social engineering alongside technical attacks. The NCSC specifically highlights QR code phishing (quishing), fake Microsoft login prompts, invoice change requests from impersonated suppliers, and “urgent security update” messages. If your team hasn’t had a refresh on these recently, now’s a good moment for a quick team briefing. Fifteen minutes on what the current tricks look like is worth more than a formal training course scheduled for three months’ time.
6. Make it easy for staff to report suspicious emails. The NCSC’s Suspicious Email Reporting Service is a real thing — forward dodgy emails to report@phishing.gov.uk and they’ll investigate. Make sure your team knows about it. Also make sure your internal path for “I clicked something I shouldn’t have” is clear, non-punitive, and fast. Delayed reporting makes breaches significantly worse; a culture where people feel safe reporting quickly is a genuine security control.
7. Sign up for the NCSC Early Warning service. This is a free service from the NCSC that notifies you if your IP addresses or domains show up in threat intelligence feeds — compromised, targeted, or associated with malicious activity. It’s quick to register at ncsc.gov.uk/early-warning and gives you intelligence you couldn’t get any other way as a small business. If you haven’t signed up, do it this week.
One More Thing: Your Supply Chain
The NCSC’s alert specifically flags supply chain risk. That means your IT providers, your SaaS tools, your accountant, your managed service provider. Any of these could be targeted as a route to you. The practical step here is to know which of your suppliers has access to your systems and data, and to confirm that they’re maintaining appropriate security controls.
You don’t need to audit every supplier. But it’s worth a conversation with your IT support provider (if you use one) specifically asking what they’re doing in response to the NCSC’s current alert. A good IT provider will already know about it and have a position. If they look blank when you mention it, that tells you something useful about their situational awareness.
The NCSC’s guidance is available in full at ncsc.gov.uk. Their Small Business Guide is also worth bookmarking — it’s genuinely practical and not written in the impenetrable language that makes a lot of cyber security documentation useless to non-specialists.