by Tom Burton
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9 October 2025
SMEs make up 99% of UK businesses, three fifths of employment, over 50% of all business revenue, are in everyone's supply chain, and are exposed to largely the same threats as large enterprises. How should they get started with cyber security? Small and Medium sized Enterprises (SME) are not immune to the threat of cyber attacks. At the very least, if your business has money then it will be attractive to criminals. And even if you don’t have anything of value, you may still get caught up in a ransomware campaign with all of your data and systems made inaccessible. Unfortunately many SMEs do not have an IT team let alone a cyber security team. It may not be obvious where to start, but inaction can have significant impact on your business by both increasing risk and reducing the confidence to address new opportunities. In this article we outline 5 key questions that can help SMEs to understand what they need to do. Even if you outsource your IT to a supplier these questions are still relevant. Some can’t be delegated, and others are topics for discussion so that you can ensure your service provider is doing the right things, as well as understanding where their responsibilities stop and yours start. Q1: What's Important & Worth Defending Not everything needs protecting equally. In your personal life you will have some possessions that are dear to you and others that you are more laissez-faire about. The same applies to your digital assets, and the start point for any security plan needs to be an audit of the things you own and their importance to your business. Those ‘things’, or assets, may be particular types of data or information. For instance, you may have sensitive intellectual property or trade secrets; you may hold information about your customers that is governed by privacy regulations; or your financial data may be of particular concern. Some of this information needs to be protected from theft, while it may be more important to prevent other types of data from being modified or deleted. It is helpful to build a list of these assets, and their characteristics like the table below:
