AI has made phishing emails almost perfect, so the old advice to look for spelling mistakes and clumsy English no longer works. To stop them, small businesses need layered defences: advanced email filtering, multi-factor authentication, a firm rule to verify any payment or detail change by phone, and regular training that teaches staff to question the request itself, not just how it’s written.
Criminals now use AI to write convincing, personalised emails that copy a real person’s tone and reference real details. Anyone can be fooled by a well-crafted message, so the answer is to build defences that don’t depend on spotting a mistake. Here is how.
1. Strong email filtering
Good email security stops a large share of phishing before it ever reaches an inbox, using advanced filtering, impersonation protection and link-checking. It’s your first and most effective layer.
2. Multi-factor authentication
If someone is tricked into giving up a password, MFA stops that password alone from being enough to get in. It’s the single most important control for limiting the damage when a phishing email succeeds.
3. A verify-by-phone rule
Most damaging phishing ends in a payment or a change of bank details. Make it standard that any such request is confirmed by phone on a known number before action. This one habit defeats the most expensive scams, no matter how convincing the email.
4. Training that fits the AI era
Since you can no longer rely on poor wording, training should focus on the nature of the request. Is it unexpected, urgent, about money or login details, or pushing you to bypass normal checks? Short, regular training and simulated phishing keep these instincts sharp.
A real example: security that wins work
We helped a client become cyber security compliant to meet a customer’s requirements and win a large tender, which grew their business. The everyday defences that stop phishing are the same ones that show clients and partners you take their data seriously.
Why businesses choose First Stop IT
First Stop IT has supported businesses since 2002. 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
Worried your team can’t tell real from fake any more? Book a free IT and cyber security review with First Stop IT and we’ll strengthen your defences and your training.