Nearly half of UK businesses reported a cyber-breach or attack in the past year. For a Northern Ireland business juggling laptops, cloud apps, remote staff and a growing list of connected systems, that risk isn’t abstract — it’s usually one convincing email away.
In some situations, suspicious message can land in an employee’s inbox. It might look like a normal note from a supplier, so they click the link without a second thought. Within minutes, an attacker can gain access to an account, steal data, or bring a business’s systems to a halt. This is why cyber protection is important for companies.
Cyber security for businesses means protecting the systems that store your data — devices, accounts, cloud applications and networks — from threats like phishing, ransomware, unauthorised access and malware.
A strong strategy layers several types of protection together: multi-factor authentication, endpoint security, firewall protection, reliable backup and recovery, and more.
Each layer covers a different part of the attack surface, reducing the chance that one compromised account or device turns into a full-blown incident.
This guide covers the key cybersecurity threats businesses face in 2026, the measures that reduce exposure to them, and how to build a more resilient IT environment — including how Com Cubed’s IT support plans map onto each of these controls.
What Is Cyber Security and Why Does It Matter for Businesses?
Cybersecurity is the practice of protecting an organisation’s networks, devices, applications, accounts and data from unauthorised access and malicious activity. It combines technical controls, security processes and user habits to reduce the risk of an incident.
For a business, that protection covers the entire IT environment — the laptops, Microsoft 365 accounts, cloud applications, servers and remote connections your team relies on every day. Each of these can introduce risk if it’s poorly configured, outdated, or left unmonitored.
Digital security for businesses generally protects:
- Endpoints — laptops, desktops and servers, against malware, suspicious activity and known vulnerabilities.
- Networks — firewalls and network controls that regulate traffic and prevent unauthorised connections.
- User accounts — multi-factor authentication and access controls that reduce the risk of compromised credentials.
- Cloud applications — services like Microsoft 365, which need their own identity, email and data protection controls.
- Business data — customer records, financial information and operational data, protected against theft, alteration and loss.
- Backups — a recovery option for when data is deleted, corrupted, encrypted or otherwise unavailable.
What Are the Biggest Cyber Security Threats Businesses Are Facing in 2026?
Many businesses rely on multiple devices, applications, cloud services and connected networks to keep operations running — and may already run basic security checks to protect their data.
But a small misconfiguration or a single compromised account can create an entry point for attackers.
The UK Government’s 2025/26 Cyber Security Breaches Survey found that 43% of businesses identified a cyber-breach or attack in the past year — a clear sign that office and remote systems alike need stronger protection.
The main cyber security threats businesses need to prepare for include:
Phishing, Social Engineering and Email Impersonation
Phishing scams use deceptive emails, messages, websites or other communications to persuade someone to take an unsafe action. The goal may be to steal login credentials, deliver malware, obtain sensitive information, or manipulate a financial transaction.
The UK Government found phishing to be the most common reported breach or attack among businesses.
Common phishing tactics include:
- Fake supplier or customer emails
- Fraudulent Microsoft 365 login pages
- Malicious links or attachments
- Urgent payment requests
- Requests for passwords or sensitive information
- Messages impersonating senior employees
Ransomware and Malware
Ransomware attacks can prevent employees from accessing files, applications or other critical business resources. Attackers may encrypt data and demand payment. Some campaigns also steal information before disrupting systems.
However, ransomware is not simply a file-encryption problem. If an attacker gains access to one device, the issue can spread further across the environment, leading to:
- Encrypted business files
- Unavailable applications and systems
- Operational downtime
- Stolen business data
- Disrupted services
- Costly recovery
Compromised Accounts and Stolen Credentials
A compromised account can give an attacker access that looks legitimate, which can make account-based attacks difficult to identify.
Attackers may obtain credentials through phishing, password reuse, malware, credential theft or social engineering.
Businesses should keep an eye on:
- Account takeover
- Unauthorised email access
- Stolen business information
- Employee impersonation
- Unauthorised cloud access
- Privilege escalation
Software Vulnerabilities and Unpatched Systems
Not every attack begins with an employee clicking a malicious link. Attackers can also exploit weaknesses in software, operating systems, servers, network devices and internet-facing applications, including:
- Outdated operating systems
- Unpatched applications
- Unsupported software
- Misconfigured devices
- Exposed remote services
- Unnecessary administrator privileges
Third-Party and Supply Chain Risks
Businesses rarely operate in isolation. They rely on cloud providers, software vendors, IT partners, suppliers and other external organisations that have access to systems or business information. A weakness within a supplier’s environment can therefore create risk for its customers.
Common risks include:
- Compromised supplier accounts
- Vulnerable third-party software
- Unauthorised external access
- Exposed shared data
- Supplier-related disruption
- Wider supply chain compromise
This is one reason 3rd-party vendor management is built into Com Cubed’s
Protect plan and above — someone is actively managing which suppliers and tools have access to your systems, not just monitoring your own accounts.
What Should a Business Cybersecurity Strategy Include?
The good news is that businesses can reduce their exposure with the right combination of cybersecurity solutions and controls, and you don’t need an in-house security team to put them in place.
Below, each control is paired with where it sits across Com Cubed’s IT support plans — Essentials, Protect, Complete and Compliance.
Multi-Factor Authentication and Access Controls
Multi-factor authentication provides an extra verification step, while access controls restrict what systems and information a user can access. This creates an important layer of security for system access across the organisation.
Businesses should consider:
- Multi-factor authentication
- User permissions
- Administrator accounts
- Password policies
- Remote access
- Regular access reviews
Our Compliance plan takes this further with permission and sharing management — auditing and controlling who can access files across Teams, SharePoint and OneDrive, not just who can log in.
Endpoint Security and Security Updates
Business laptops, desktops and servers can be compromised and serve as an entry point when infected with malware or left with known vulnerabilities. Endpoint security protects these devices, and security updates patch the vulnerabilities before they’re exploited.
Every Com Cubed support plan includes 24/7 device monitoring with self-healing automation, so many issues are resolved before they ever need a support ticket. From Protect level upward, this includes enterprise antivirus (EDR); at Compliance level, it extends to unified EDR & identity protection — one native platform that correlates device and identity threats, instead of two disconnected tools.
Firewall and Network Protection
A firewall controls network traffic between environments, blocking unwanted connections and reducing exposure to malicious network activity. Network security also needs to account for wireless infrastructure, remote connections and communication between systems — a VPN can provide a secure connection for staff working remotely.
This can involve:
- Firewall protection
- Secure network configuration
- VPN for businesses
- Wireless security
- Remote access controls
- Network monitoring
- Network segmentation
Network device monitoring and maintenance — covering firewalls, routers and switches — is included from our Complete plan upward, as part of ongoing IT support rather than a one-off setup.
Email and Cloud Security
Email remains closely connected to phishing and account compromise, and cloud platforms can hold large amounts of business information. For Microsoft 365 environments, additional security controls can go well beyond basic email filtering to catch more sophisticated threats.
A business may need protection across:
- Email accounts
- Malicious links
- Attachments
- Cloud identities
- Application access
- Stored business data
This is exactly what Hornetsecurity-powered protection — included from our Complete plan — is built to catch: spam and malware filtering, advanced threat protection, and email archiving and continuity. At Compliance level, this extends to permission management and misdirected email prevention, which flags emails at risk of going to the wrong recipient before they’re sent — a common cause of confidentiality breaches in regulated industries like legal and insolvency work.
Backup and Recovery
Even well-protected systems can experience an incident, hardware failure or accidental deletion. Backups provide another route to recover important information when the original data becomes unavailable.
A practical backup strategy should consider:
- Critical business data
- Backup frequency
- Retention periods
- Backup access
- Recovery requirements
- Protection against ransomware
Backup monitoring is built in from our Protect plan upward, with full Microsoft 365 backup — covering Mail, SharePoint and OneDrive — included from Complete.
Monitoring and Ongoing IT Management
Cybersecurity isn’t something a business configures once and then forgets. Devices change, vulnerabilities emerge, and unusual activity can occur at any time. Around 30% of businesses now use monitoring tools as part of their day-to-day cyber hygiene.
Ongoing monitoring can provide visibility into:
- Endpoint health
- Security alerts
- Patch status
- Network activity
- User activity
- Backup status
Continuous vulnerability scanning — ongoing risk scanning and remediation, rather than a once-a-year audit — is part of our Compliance plan, built for legal, insolvency, healthcare and financial services clients who need one auditable security posture.
How Can Businesses Protect Their Data From Cyber Threats?
Business data protection starts with understanding where information exists and how it moves through the organisation. Customer records may sit in cloud applications while financial information sits on servers — and since employees access business files from laptops and remote locations, security gaps can quickly become a breach.
A practical approach should focus on the following:
Know Where Your Business Data Is Stored — data often exists across local devices, servers, email platforms, cloud applications, shared drives and backup systems. Knowing where sensitive information lives makes it easier to identify which systems need stronger controls.
Limit Access to Sensitive Information — not every employee needs access to every piece of business information. Following the principle of least privilege reduces the potential impact if an account is compromised.
Protect Data Across Its Entire Environment — protecting only the original storage location leaves gaps elsewhere. Consider how data is protected while stored, transferred, shared internally, and accessed by remote users.
Maintain Recoverable Copies of Critical Data — this matters most during ransomware incidents. If files are encrypted, the ability to restore clean, usable copies determines how quickly normal operations resume.
Have a Clear Response for Data Incidents — a data breach or ransomware incident can have technical, business, legal, and reputational consequences. A clear data breach prevention process establishes who takes responsibility, how affected systems are handled, and how evidence is preserved.
Review Your Existing IT Support — As your business grows, its IT environment changes quickly. More users, devices, applications and cloud services can create requirements your existing support arrangement wasn’t designed to handle. Not sure where your business currently sits? Our IT Support Calculator gives you an instant, no-obligation estimate based on your team size and the level of cover you need.
How Should Small Businesses Protect Their Essential Data?
A smaller organisation may not have the same scale as a large company, but it can still hold valuable customer data and access to cloud systems — often with fewer IT resources to identify and respond to problems.
Here are some good cyber security tips for small businesses:
Keep Software and Devices Updated — outdated software can contain vulnerabilities attackers exploit to gain access. Keeping devices and applications updated closes known weaknesses before they become an easy entry point.
Secure Business Accounts — a compromised account can expose email, cloud applications, files and other resources. Strong authentication and sensible access controls reduce the risk from stolen credentials.
Train Employees to Spot Suspicious Activity — an attacker can compromise an account or device with just one successful interaction, so training should cover suspicious emails, unexpected attachments, fake login pages, unusual payment requests and how to report anything that looks off. Our Compliance plan includes staff cyber awareness training — automated phishing simulations and e-training, benchmarked against an ongoing staff security risk score — so this becomes a measured, ongoing programme rather than a one-off session.
Back Up Important Business Data — a ransomware attack, hardware failure or accidental deletion can make important information unavailable. Reliable backups provide a separate copy of critical data to support recovery.
Monitor Your IT Environment — ongoing monitoring helps identify unusual activity, device problems, and other issues that might otherwise go unnoticed.
Know How to Respond to an Attack — a clear response plan reduces confusion and helps the business move from detection to containment and recovery.
Managed IT Support vs In-House IT Support: Which Approach Is Better for Cyber Security?
Many businesses rely on an in-house IT team to handle systems and day-to-day technical issues. That can work well, but it also places a lot of responsibility on a small team — when resources are stretched, important tasks can be delayed or overlooked.
An external IT partner or companies offering IT support services can provide ongoing technical management, monitoring, maintenance and support alongside your existing resources.
Com Cubed offers four levels of managed IT support — Essentials, Protect, Complete and Compliance — so you can match your level of cover to your risk profile and industry, without over- or under-buying.
| Area | In-House IT | Managed IT Support |
| IT management | Handled by internal employees. | Managed by an external IT provider. |
| Monitoring | Depends on internal resources and coverage. | Ongoing monitoring can be included. |
| Security management | Managed by the internal IT team. | Security controls can be managed and monitored externally. |
| Patching | Internal team manages updates. | Updates can be monitored and managed as part of the service. |
| Technical expertise | Depends on the skills within the team. | Access to a wider range of technical expertise. |
| Support availability | Limited by team size and working hours. | Support availability depends on the service agreement. |
| Scalability | Requires additional internal resources as needs grow. | Support can be adjusted as the IT environment changes. |
| Costs | Salaries, training, tools and infrastructure. | Ongoing service cost based on the agreed support model. |
Build a Stronger Cyber security Strategy in 2026 with Com Cubed Computers
Cybersecurity is an essential investment that helps organisations prevent costly incidents. A layered approach — ongoing monitoring, reliable backups and the right technical support — reduces risk and protects business continuity.
At Com Cubed Computers, we provide IT support, cyber security services, and technology solutions for businesses across Northern Ireland, with four support plans — Essentials, Protect, Complete and Compliance — built around how much risk and responsibility you want to hand off.
If your business operates in a regulated or compliance-heavy sector — legal, insolvency, healthcare or financial services — our Compliance plan is built specifically around that: unified EDR & identity protection, permission and sharing management, misdirected email prevention, continuous vulnerability scanning, and staff cyber awareness training, all in one platform rather than a stack of separate tools.
Whether you need day-to-day IT management or want to strengthen your wider security posture, get an instant estimate with our IT Support Calculator, or contact Com Cubed Computers today to talk through what fits your business.
Frequently Asked Questions
1. What is the biggest cybersecurity risk for businesses in 2026?
There isn’t one risk that affects every business in the same way. Phishing, stolen credentials, ransomware, and unpatched software are still common problems. The actual risk depends on the systems your business uses and how well they’re protected.
2. How can a small business protect itself from cyber attacks?
Start with the basics and get those right: use multi-factor authentication, keep software updated, protect business devices, back up important data, and make sure employees know how to spot suspicious emails and requests.
3. How often should a business review its cybersecurity?
Automated monitoring, security alerts, endpoint protection, and backup checks handle much of the day-to-day work. A more detailed review of your overall cybersecurity should usually happen at least quarterly.
4. Can cyber insurance replace cybersecurity measures?
No. Cyber insurance can help with some of the costs associated with an incident, but it doesn’t stop an attack from happening. You still need proper security controls, backups, monitoring and a plan for responding to an incident.
5. Which Com Cubed plan is right for a regulated business?
Our Compliance plan is designed for legal, insolvency, healthcare and financial services businesses that need a single, auditable security posture — including unified EDR & identity protection, permission management and continuous vulnerability scanning. If you’re not sure which level fits, our IT Support Calculator or a quick call with our team can help you work it out.