Multi-factor authentication (MFA) is a security measure that requires users to provide two or more forms of identification before accessing your network. Instead of just entering a password, staff might also need to confirm their identity using a code sent to their phone or a physical security token. This extra step makes it much harder for unauthorised people to get into your systems, even if they have stolen a password.
Why MFA matters for UK SMEs
For small and medium-sized businesses in the UK, network security is critical. Cyber attacks can lead to costly downtime, loss of sensitive customer or employee data, and damage to your reputation. Many breaches start with stolen or weak passwords, so MFA acts as a strong barrier. Additionally, if you handle personal data, MFA supports compliance with UK GDPR and the Data Protection Act 2018 by helping protect that data from unauthorised access. It also aligns with Cyber Essentials requirements, which many clients and suppliers now expect.
A typical SME scenario
Consider a UK business with around 50 staff using network logins to access email, shared files, and cloud services. Without MFA, if an employee's password is phished or guessed, an attacker could gain access to confidential information or install malware. An IT partner would recommend enabling MFA on all critical systems, such as VPNs, remote desktop access, and email accounts. They might help implement a solution that sends a one-time code to employees' smartphones or uses an authenticator app. This reduces risk significantly and can be managed centrally to avoid disrupting daily work.
Practical steps to take now
- Ask your IT provider: Do you support MFA on all network access points, including remote and cloud services?
- Check your systems: Are MFA options enabled for email, VPN, and admin accounts?
- Review your policies: Do you require MFA for all users or just privileged accounts?
- Test internally: Can all staff easily use MFA without excessive friction?
- Consider compliance: Does your MFA setup help meet Cyber Essentials or ISO 27001 control requirements?
- Plan for exceptions: How will you handle lost devices or staff who cannot use certain MFA methods?
Implementing MFA is a practical and effective way to strengthen your network security. Speak with a trusted managed IT provider or advisor who understands your business needs and can help you deploy MFA smoothly. This will help protect your data, maintain staff productivity, and support compliance efforts without adding unnecessary complexity.