Cybersecurity Basics Every UK SMB Should Know in 2025
It’s 2025, and the threat landscape has never been more dangerous for UK businesses – especially small and medium-sized ones. Cyber criminals are no longer just targeting large corporations. In fact, SMBs are now more likely to be attacked because they often have weaker defences and more valuable data than they realise.
So, what cybersecurity basics should every SMB have covered this year?
1. Multi-Factor Authentication (MFA)
One of the simplest, most effective tools for blocking unauthorised access. MFA adds a second step to logging in – usually a text message, authenticator app, or biometric confirmation. It’s essential for protecting email, cloud services, and remote access.
2. Strong Password Management
Still using “Password123” or sharing credentials by email? Weak passwords are a hacker’s dream. Use long, unique passwords and implement a password manager across your organisation. Enforce regular changes and prohibit re-use of old passwords.
3. Endpoint Protection
Every laptop, desktop, and mobile device connected to your network is a potential entry point. Use up-to-date antivirus, anti-malware, and firewall software – and manage it centrally. Monitor devices remotely and automate updates where possible.
4. Data Backups
Backups are your last line of defence. Implement automatic daily backups for emails, files, databases, and critical systems. Store backups in multiple locations, including a secure offsite or cloud environment, and test them regularly.
5. Security Awareness Training
Human error is the #1 cause of data breaches. Train your employees to spot phishing attempts, avoid suspicious links, use secure file sharing, and report anything unusual. Cybersecurity awareness should be part of your onboarding and ongoing training.
6. Email Filtering and Anti-Phishing Tools
Most attacks start with an email. Use robust spam filtering and phishing detection tools to prevent malicious messages from ever reaching your users. Microsoft Defender or third-party email security platforms can add another layer of protection.
7. Software Updates & Patch Management
Outdated software = vulnerabilities. Ensure your systems, browsers, apps, and operating systems are updated regularly. Automate patching where possible and set policies to avoid delays.
8. Device Encryption
If laptops or USBs are lost or stolen, encrypted devices help prevent sensitive data from being accessed. BitLocker (Windows) or FileVault (Mac) should be enabled across the board.
9. Secure Remote Access
With hybrid working now the norm, remote access must be secure. Avoid open RDP ports. Use VPNs, zero-trust policies, and device compliance rules to ensure only authorised users can connect.
10. Incident Response Plan
If the worst happens, do you have a plan? Create a step-by-step response plan covering who to contact, how to contain the breach, and how to restore systems. Assign roles and test the plan regularly.
Final Thought
Cybersecurity isn’t just about firewalls and software – it’s about mindset, processes, and preparation. The basics outlined above form the foundation of a secure business. Whether you handle IT in-house or rely on a Managed IT provider, these practices are non-negotiable in 2025.
Want help reviewing your security posture or implementing these tools? ITCS Global can help – we’ve been securing UK businesses since 2005.
