Cyber Security for Large Businesses

The Scale of Cyber Risk Facing UK Businesses

UK government data highlights how widespread and persistent cyber threats have become, including for larger businesses.

• Around 43 % of UK businesses identified a cyber breach or attack in the last year, with larger businesses more likely to detect and report incidents. GOV.UK
• Phishing remains the most common form of cyber attack, affecting more than 85% of businesses that experienced a breach. GOV.UK
• UK businesses experienced an estimated 8.58 million cyber crimes across all types in the past 12 months, showing the scale of attempted and successful attacks. GOV.UK
• The average cost of cybercrime per business, excluding phishing-only incidents, was around £990, rising significantly when more serious incidents occurred. GOV.UK
• Larger businesses are more likely to experience disruptive incidents, including ransomware, data loss and extended system downtime. GOV.UK

For large businesses, the true cost often extends beyond immediate financial loss. Reputational damage, regulatory scrutiny and operational disruption can have long-term consequences.

Common Cyber Risks for Large Businesses

Phishing and credential compromise

Even with technical controls in place, attackers continue to target staff through convincing emails and messages. One compromised account can provide a foothold into wider systems.

Ransomware and business interruption

Large businesses are attractive ransomware targets due to their reliance on availability. Disruption to billing, logistics, customer services or core platforms can quickly escalate.

Supply chain and third-party risk

Large businesses depend on extensive networks of suppliers and service providers. A weakness in one partner’s security can provide an indirect route into your own environment.

Data protection and regulatory exposure

Personal data, customer records and employee information must be protected in line with legal and regulatory expectations. Failures can lead to fines, investigations and loss of trust.

Inconsistent controls across teams and regions

As businesses grow, security maturity can vary between departments or locations. Gaps often appear where responsibility is unclear or governance is fragmented.

How We Support Cyber Security for Large Businesses

Our approach recognises the scale and complexity of large businesses. We focus on visibility, consistency and proportionate control.

Enterprise Risk Assessment and Gap Analysis

We assess your systems, access models, policies and workflows to identify where risk is concentrated and where controls can be strengthened without disrupting operations.

Identity and Access Management

We help reduce reliance on weak credentials and improve control over who can access sensitive systems and data across the businesses.

Email and Threat Protection

Advanced filtering, monitoring and staff awareness measures reduce the likelihood of phishing and account compromise.

Monitoring and Incident Response Support

Continuous monitoring helps identify unusual activity early. When incidents occur, we support a structured response and containment to limit impact.

Working Alongside Sector-Specific Expertise

Many large businesses operate across multiple regulated or high-risk sectors. We also support cyber security programmes aligned to specific professional environments, including:

• Cyber security for architects
• Cyber security for the construction industry
• Cyber security for accountants and financial advisors
• Cyber security for solicitors and law firms
• Cyber security for education

This allows security controls to be applied consistently while still reflecting the realities of different teams and services.