Yes, both office and site staff need security awareness training. Your people are the front line, and most successful attacks on contractors start with a person, not a computer. Short, regular training combined with simulated phishing tests measurably reduces the chance of someone clicking the wrong link or approving a fraudulent payment. It applies just as much to engineers using email on a phone as to finance staff at a desk.
You can have excellent technical security and still be caught out by one convincing email. Training closes that gap. Here’s what good looks like.
1. Why it matters for contractors
Contractors move money between clients, suppliers and subcontractors, which makes them a target for invoice and payment fraud. Attackers use convincing, personalised emails, so you can’t rely on spotting bad spelling. Training teaches people to question the request itself.
2. Training and testing together
The strongest approach pairs short training with safe, simulated phishing emails. The training builds knowledge, and the harmless tests show who’s putting it into practice and where a little extra help is needed.
3. Short and regular beats long and rare
People don’t remember a one-off annual session, and site staff have little time to spare. Bite-sized training through the year, with the occasional test, keeps security front of mind without taking much time from the job.
4. It supports your wider security and contracts
Training works alongside your technical controls and is increasingly expected by main contractors, clients and insurers. Being able to show you train your people also helps when you’re asked how you protect data on a project.
A real example: a team that checks before clicking
We support a security and M&E contractor where staff routinely forward suspicious emails to ask if they’re genuine rather than clicking. That habit, backed by our quick verdicts, is exactly what awareness builds, and it’s what stops a phishing email turning into a fraud.
For a security, fire or M&E contractor, this is part of managed IT and security that usually costs about £45 to £100 per user per month, scaling with your headcount, how many staff work from site, and the finance and security software you rely on.
Why security and M&E contractors choose First Stop IT
First Stop IT has supported businesses since 2002, including security, fire and M&E contractors and building-services firms with office and site-based teams. We know how these businesses run: hosted desktops for staff on site and in the office, QuickBooks and payroll, secure remote access for field engineers, Microsoft 365 and Google Workspace, and the layered security that protects a firm handling client sites and payments, from MFA and application allowlisting to managed threat detection. We support contractors in Harlow, Bishop’s Stortford and across Essex, Hertfordshire and London. Our credentials include:
- Cyber Essentials Certified
- IASME Cyber Assurance (Gold)
- NCSC Assured Service Provider (Cyber Advisor for Cyber Essentials)
- Microsoft Partner
- Crown Commercial Service Supplier (G-Cloud)
- Quality Principles Certified
We look after more than 2,000 endpoints across 50 companies, we’ve been named a Top 50 UK MSP for three years running, and we support organisations with 10 to 100 employees across Essex, Hertfordshire and London, including Harlow and Bishop’s Stortford.
Book a free IT and cyber security review
Want to turn your team into a strong line of defence? Book a free IT and cyber security review with First Stop IT and we’ll set up training that fits.