Small and medium-sized businesses (SMBs) are some of the most heavily targeted by threat actors, making robust security measures absolutely essential. But without a clear understanding of which threats your business faces, or how to stop them, a strong defense strategy is almost impossible to build. Each attack is unique and requires its own approach. While generic measures such as antivirus software can address some risk factors, they are not enough on their own.
So what are the most common cybersecurity threats for small businesses in 2025? And what are some effective strategies you can use to protect yourself?
Are you a manufacturer? Explore the threats unique to your industry
Ransomware Attacks on SMBs
A common threat for many years, ransomware attacks on SMBs continue to occur every day. In fact, just last month American media company Lee Enterprises experienced a breach that impacted almost 40,000 people. These devastating attacks occur when threat actors lock down data or critical operations, demanding payment in exchange for their safe return.
Traditionally, ransomware could often be prevented with strong data backup practices alone. However, threat actors have adapted to this. Modern attacks use double and triple extortion measures, to counteract the possibility of a backup. In addition to holding information or systems captive, those responsible will also threaten to leak it if a payment is not made.
It is crucial to never pay the ransom. 92% of victims who pay do not actually get their data back unharmed. Cybercriminals see no reason to hold up their end of the bargain once they have your money, and will often carry out their threats anyway. Rather than saving your data or systems, you are only costing yourself even more money.
Phishing Attacks on Small Businesses
The impact of phishing attacks on small businesses can be devastating, and as time passes they are only becoming more difficult to stop. During this scam, threat actors pose as a legitimate entity (such as a coworker, employer, bank, or third-party). Using this persona, they attempt to either download malware onto company devices, or collect sensitive data such as login credentials. Phishing emails in particular are extremely common, but you might also encounter phone calls (vishing) or SMS messages (smishing).
The invention of advanced AI tools (for example, deep fakes) has made phishing scams harder to detect. Modern threat actors can create an almost perfect replica of an entity’s typing style, face, and even voice. This makes them nearly impossible to distinguish from legitimate contact attempts, drastically increasing the chance of success.
The Threat Introduced by IoT Devices
The Internet of Things (IoT) refers to objects containing sensors or software that connect them to the internet. One example is smart appliances. These are being adopted by businesses at a rapid pace, due to the benefits they can provide – but often, the danger they present is severely underestimated.
The reality is that IoT devices typically lack built-in security capabilities, and are usually not seen as a potential threat. This means that they are left entirely undefended, making them the perfect target for malicious actors. When securing your endpoints, it is essential not to forget about these ones.
The Impact of Data Breaches on Small Businesses
A data breach – where sensitive information is accessed, stolen, or leaked to the public – is one of the worst things that can happen to a small business. It has been estimated that as many as 60% of all SMBs that experience one close shortly afterwards. It is not difficult to see why. The consequences of data breaches on small businesses can include:
- Financial: Incident recovery can cost thousands or millions of dollars, depending on the size of the breach. In addition, the long-term loss of customers can result in lower profitability.
- Operational: A data breach can cause long periods of downtime, halting operations for hours or days and putting everyone behind.
- Legal: If you are found to have breached data security laws, you might be subject to severe fines, lawsuits, or other penalties.
- Social: Trust is hard-won and even harder to keep. Once it is lost, it can be almost impossible to regain. Customers will go elsewhere, and your profits will suffer.
Fortunately, there are ways to protect yourself.
Building a Resilient Cybersecurity Strategy for Small Businesses
Protecting small businesses from cyber-attacks might feel like an unreachable goal, but this is far from the truth. There are many low-cost, high-impact strategies that can make a difference:
- Perform Regular Risk Assessments: Regular cyber risk assessments will identify any vulnerabilities present within your IT infrastructure, allowing you to correctly prioritize new cybersecurity measures.
- Train Employees: Your best defense against a phishing scam is employee awareness. Run a comprehensive session at least once per year, along with smaller sessions in between. This reduces human error and helps prevent identity theft.
- Partner With an Expert: A managed service provider (MSP) can provide crucial expertise, monitor for threats, and implement advanced security measures for only a small monthly fee.
- Implement Strong Policies: A set of strong, well-enforced data protection policies will reduce your risk of a breach by encouraging secure practices. Customer data should be treated especially carefully, to preserve trust.
- Segment Your Network: Network segmentation helps mitigate the danger associated with IoT devices, by ensuring that threat actors cannot move laterally across your business.
- Update Software Often: Software updates often contain important security patches. Perform these early to prevent known vulnerabilities from being exploited.
- Use Multi-Factor Authentication (MFA): MFA prevents cybercriminals from breaching sensitive accounts (such as bank accounts), by requiring multiple forms of verification before allowing access.
Staying Ahead of Cyber Security Threats in 2025
The truth is, SMB cybersecurity risks are not going anywhere. As time passes, they will only become more advanced – and more difficult to stop. But there is hope. By staying updated on emerging cybersecurity threats, learning how they work, and implementing measures designed to target these specific vulnerabilities, you stand a much better chance of avoiding a breach and protecting your business’ future.
If you need help improving your security posture, we have you covered. There are many experts available who can identify your biggest risk factors, and address them before threat actors have the opportunity to strike. Discover 7 of the best cybersecurity providers in Chicago today.