The 2025 Guide to Information Security for Growing Businesses 

Why 2025 Demands a Smarter Approach to Information Security for SMEs 

Half of all UK businesses reported experiencing a cybersecurity breach or attack in the past 12 months, and for those affected, phishing was overwhelmingly the leading cause, accounting for 84% of incidents. That means nearly one in two UK businesses faced a cyber‑related disruption last year, and phishing remained the most persistent and damaging form of attack.  

Beyond external threats, insider-related security incidents are also growing more common. Yet fewer than one-third of businesses have a formal, documented cybersecurity policy in place. As a result, when incidents occur, whether through mistakes or misuse, organisations often struggle to respond effectively or learn from them. 

SMEs are particularly exposed. With limited resources and without a dedicated security function, smaller organisations frequently rely on IT personnel or managers to step in. But without proper tools, governance frameworks, or leadership, even common threats like phishing or basic policy failures can have serious operational, financial, and reputational consequences. 

In 2025, this landscape demands a sharper, smarter approach: 

• Phishing isn’t fading, it remains the most frequent attack, responsible for 84% of breaches in UK businesses.  
• Formal policies are still rare, with only one in three businesses having documented cybersecurity governance. 
• Smaller organisations need strategy, not just tools. Integrating security into daily operations, building internal leadership, and maintaining readiness are now vital for resilience. 

This guide is designed to help SMEs take practical, confidently structured steps toward better security. From establishing policies to building internal expertise, it will help you protect your organisation in 2025 and beyond and turn security from a reactive afterthought into a strategic asset.

Start With the Basics: What Information Security Means for Your Business 

Information security isn’t just about firewalls and passwords. At its core, it’s about ensuring that the information your business relies on is protected. Customer records, operational data, communications, and financial systems should be protected from theft, loss, and misuse. This includes not only digital assets but also printed documents, physical devices, and the behaviour of your staff. 

In 2025, this has taken on new urgency for three key reasons: 

• Increased awareness from UK government: The UK government has taken a closer interest in the threat of cyber security breaches as it having a greater impact on UK business.  

• Hybrid working is now standard: Many SMEs operate with a mix of office-based and remote staff. This brings flexibility but also means that security needs to follow the user, not just sit inside the office network. 

• AI-driven threats are becoming more common: In 2025, attackers are using AI tools to automate phishing campaigns, mimic employee writing styles, and probe for vulnerabilities at scale. This makes social engineering harder to detect – and faster moving. 

What this means is that information security can’t be left to chance or informal habits. Every SME needs to establish some form of structure: clear policies, defined responsibilities, and a shared understanding of risk. Whether your business is five people or fifty, a solid foundation in information security is now essential for operational continuity and customer trust. 

The good news? You don’t need to become a security expert overnight. But you do need to take clear, practical steps and know when to seek guidance from trained professionals. The rest of this guide will walk you through those steps. 

Understand Your Risk: A Practical Approach to Security Assessment 

Before you can protect your business, you need to understand where the risks are. That means looking closely at how your information is used, who has access to it, and what could happen if it were lost, stolen, or tampered with. 

Start by asking a few straightforward questions: 

• What types of data do we rely on every day? 
• Who can access our systems, and from where? 
• What would be the impact if our data was compromised or unavailable? 

In 2025, one of the biggest shifts is the sheer number of systems and apps that SMEs now rely on. From cloud-based accounting tools to client portals and collaboration platforms, your data is often scattered across multiple environments. This makes it easier to do business — but also introduces more entry points for attackers and more complexity when things go wrong. 

Another growing concern is supply chain risk. Many businesses assume their biggest security threats are internal or direct, but that’s no longer the case. In 2025, cybercriminals are increasingly targeting suppliers and service providers as a way to reach smaller organisations with weaker oversight. If your business depends on third parties for hosting, IT support or data processing, you need to consider their security practices as part of your own risk picture. 

Conducting a simple risk assessment doesn’t require specialist software or external consultants. It requires structure, awareness and the ability to prioritise. This is where trained professionals make a difference. They don’t just identify technical issues — they understand how to weigh up business risks, recommend proportionate controls and create a plan that works for your size and sector. 

Understanding your risk is the starting point for everything else. Without it, security decisions are either reactive or guesswork. With it, you can begin to take control. 

Create an Information Security Policy That People Will Actually Use 

An information security policy sets the ground rules for how your business protects its data and systems. It defines expectations, clarifies responsibilities and provides a reference point when incidents occur or decisions need to be made. But in many SMEs, policies either don’t exist or sit untouched in a file no one reads. 

A good policy doesn’t need to be long or technical. It needs to be clear, relevant, and supported by the people expected to follow it. 

Here’s what it should include: 

• What’s in scope – for example, which systems, data types and users it applies to 
• Who is responsible for what – from access control to incident reporting 
• What actions are required – such as password standards, backup routines and acceptable use of devices 

In 2025, the policy needs to account for hybrid work setups, use of personal devices, and growing reliance on third-party tools and therefore might also cover your procurement processes. It’s no longer enough to write a document and call it done. Policies must evolve with your business and be reviewed regularly. 

Most importantly, make it something people can understand and apply. Avoid jargon, be specific, and make sure senior leadership visibly supports it. A well-communicated policy is more than just compliance – it’s the foundation of day-to-day security awareness. 

Build Internal Capability: Appoint an Information Security Champion 

For many SMEs, responsibility for security is vague or dispersed. That’s where an internal security champion can make a real difference. This doesn’t have to be a full-time role or a senior manager. What matters is that someone has a recognised remit to coordinate, guide and support your security efforts. 

In practice, that might mean: 

• Helping to roll out and update the security policy 
• Being the first point of contact for questions or incidents 
• Liaising with external experts or training providers 
• Having oversight of security arrangements for all the information assets of the business, including those hosted externally 

In 2025, this kind of role is increasingly valuable. With threats becoming more complex and expectations rising, having a named person who keeps security on the agenda (even as part of a broader role) helps embed it into the culture of your business. 

This person doesn’t need to know everything. But they do need to be supported, empowered, and given the opportunity to develop their knowledge. Training courses like the BCS Foundation Certificate in Information Security Management Principles give champions the confidence, structure and credibility to lead security in a practical, business-focused way. 

Know When to Bring in Help: Accessing Internal or External Expertise 

No organisation can do everything in-house and when it comes to information security, knowing when to seek external support is a sign of strength, not weakness. For many SMEs, the reality is that existing teams are already stretched. Where they are in place, IT managers, operational leads or data protection officers are often covering multiple roles. Security risks don’t wait for capacity. 

That’s where access to professional expertise becomes critical. 

Whether you’re at the start of your security journey or need to strengthen existing processes, working with experienced consultants can save time, reduce risk and improve outcomes. 

This isn’t about outsourcing responsibility. It’s about building internal capability with the right support. Our approach combines hands-on consultancy with knowledge transfer, so your people grow in confidence and competence. We work alongside your team to: 

• Identify gaps in your current approach 
• Develop or refine your information security policies and practices 
• Provide targeted training, including delivery of certificated courses, to build long-term internal leadership 

In 2025, this approach is more important than ever. With new threats, tighter regulations and more complex IT environments, businesses need more than just reactive tools. They need a structured, well-informed strategy, and people who understand how to carry it through. 

External expertise offers perspective, structure and proven experience. It helps you make better decisions and avoid costly missteps. More importantly, it sets your business up for sustained resilience by equipping internal staff with the skills and clarity they need to lead. 

If you’re unsure where to begin, or know that security is something you’ve been meaning to “get to,” now is the time to take that step. The right support can move your organisation from reactive to resilient – Tkm & Associates is here to help you get there. 

Train Your Team: Raising Awareness and Reducing Human Error 

It’s often said that people are the weakest link in security. But they’re also your first line of defence. Most security breaches still originate from simple mistakes: clicking on a phishing link, using weak passwords, or mishandling sensitive data. These aren’t failures of intent. They’re failures of awareness. 

That’s why training isn’t a luxury. It’s a core part of security management. For SMEs, this doesn’t mean formal training for every employee. It means building a baseline level of awareness across the team, and equipping key individuals with the knowledge to lead. Everyone should know: 

• How to recognise and report a suspicious email or unexpected request 
• What good password management looks like, and why it matters 
• How to handle personal and sensitive information responsibly and appropriately 
• The correct, secure locations and systems for storing business information 

In 2025, attackers are using more convincing methods, often mimicking internal communications or exploiting real-world events. That makes education even more important. A one-off awareness session won’t cut it. Security needs to be part of the organisational culture – reinforced through onboarding, regular reminders and accessible guidance. 

For those with direct responsibility, whether IT leads, operations managers or nominated security champions, more in-depth training is essential. This is where structured, accredited learning adds real value. It moves beyond surface-level knowledge, giving your people the tools to understand threats, implement effective controls, and support the wider business. 

Ultimately, well-informed people reduce risk. They make better decisions, spot issues sooner and respond more effectively when something doesn’t look right. 

Monitor and Improve: Making Security a Continuous Process 

Security isn’t something you set up once and forget. Threats change, staff turnover, systems evolve and what worked last year might not be good enough today. That’s why a continuous approach is essential. It doesn’t have to be complex, but it does need to be consistent. 

Start by setting some realistic checks. This could include reviewing access controls, checking that backups are working properly, or testing how your team responds to simulated phishing emails. Small, regular actions will keep security visible and help you spot problems before they escalate. 

In 2025, businesses that succeed in managing security tend to treat it as a live function, not a tick-box exercise. That means taking time to reflect after incidents, even minor ones and updating your policies and practices based on what you learn. It also means keeping an eye on external developments, like regulatory updates or emerging threats relevant to your sector. 

If you’ve appointed an internal security lead or champion, they should be central to this process. Give them the time and support to keep things on track, whether that’s coordinating policy reviews, reporting to leadership, or arranging refresher training. And if they’ve undertaken formal training, such as the BCS ISMP, they’ll be better equipped to guide that improvement with structure and confidence. 

Security isn’t static, and neither is your business. By building continuous improvement into your routine, you reduce your exposure and strengthen trust with customers, partners and staff alike. 

Take the Next Step: Build Strategic Security Capability With Confidence 

Once the basics are in place – a policy, some training, a sense of where your risks lie – the next question is often, what now? For many businesses, the challenge isn’t just dealing with immediate threats. It’s about building something more strategic. A way to approach information security that’s sustainable, proportionate and aligned with how the business actually operates. 

That’s where capability comes in. 

Strategic security isn’t just about tools or templates. It’s about having the right people, with the right understanding, making the right decisions. If your organisation is relying on a small team or a single person to manage security, they need support to do it well. That means time, authority and training that gives them confidence in their decisions. 

In 2025, the demand for structured, real-world security leadership is only growing. Customers are asking tougher questions. Partners are tightening their due diligence. Regulators expect more than just intent; they want evidence. A well-trained internal lead or manager can meet these expectations with clarity and assurance. 

At Tkm & Associates, we help organisations take this next step. Through delivery of the BCS Foundation Certificate in Information Security Management Principles, we equip professionals with the structure, language and practical skills needed to lead. It’s not about turning your staff into cybersecurity experts. It’s about giving them the ability to manage information risks in a way that’s credible, scalable and rooted in the real demands of your business. 

The next step doesn’t have to be complicated. But it does need to be intentional. With the right support, you can move from reactive problem-solving to a proactive, strategic approach and build the kind of capability that protects your organisation now and in the years ahead.