The typical victim of a online attack is not a multinational with hundreds of servers. It is a company of between 10 and 50 people, with a small or non-existent IT team, that has not invested in cybersecurity because there were always more urgent things to deal with. When an attack comes, there is no protocol, no recently verified backups, and no time to improvise.
The good news is that most cyberattacks against small companies are not sophisticated. They are opportunistic. And that means basic measures, properly applied, eliminate a very significant share of the risk.
Why Small Business Are a Priority Target
Attackers do not necessarily go after the biggest prize. They look for the best ratio between effort and reward. A small companies without two-factor authentication, with weak passwords and no verified backups, is a far more profitable target than a large corporation with a dedicated cybersecurity team.
On top of that, many small enterprises are part of the supply chains of larger companies. Attacking them is, in some cases, the entry point to higher-value targets.
What All These Attacks Have in Common
Most online attacks affecting small companies share one characteristic: they exploit something that was not done, not an impossible-to-foresee vulnerability. A pending update, an account that was never deactivated, an untrained employee, a backup that was never verified.
From a cybersecurity perspective, that is actually good news — because it means a very significant share of the risk can be reduced through processes, not necessarily through large technology investments.
The 8 Most Common Cyberattacks Against Small Business
These are the attack vectors that appear most frequently in companies with fewer than 50 employees, along with concrete measures to reduce their impact.
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Email phishing
An employee receives an apparently legitimate email — from a bank, a supplier, or even someone inside the company — and clicks a link or opens an attachment. It is the origin of 80% of cybersecurity incidents. Prevention: regular team training, advanced spam filters, and two-step verification for corporate email.
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Ransomware
Malicious software encrypts all company files and demands a ransom to recover them. For a small business without verified backups, it can mean shutting down entirely. Prevention: daily backups with periodic restoration tests, network segmentation, and consistent system updates.
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Brute force attacks and credential theft
Attackers try username and password combinations automatically until they gain access. Weak or reused passwords are the most common problem. Prevention: corporate password manager, multi-factor authentication on all critical access points, and a robust password policy.
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Social engineering
The attacker impersonates a supplier, a manager, or a client to obtain confidential information or a bank transfer. No technical knowledge required. Prevention: verification protocols for urgent requests involving money or data, especially over the phone or email.
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Malware on unpatched devices
A device with pending updates is an open door. Cyberattacks that exploit known vulnerabilities are almost entirely avoidable with a systematic update policy. Prevention: centralised device management with automatic patch deployment.
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Attacks through suppliers or third parties
A supplier with access to company systems suffers an attack, and that access becomes the entry point. Prevention: regularly review third-party permissions, limit access to the minimum necessary, and require cybersecurity standards from critical suppliers.
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Unauthorised access through former employee accounts
An active account belonging to someone who no longer works at the company is a real and frequently overlooked risk. Prevention: an offboarding protocol that includes the immediate deactivation of all access on the day of departure.
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Attacks on poorly configured Wi-Fi networks
A corporate network without segmentation, with weak passwords, or without WPA3 encryption is vulnerable to traffic interception and unauthorised access. Prevention: separate guest network, strong passwords, and periodic review of router and access point configuration.
Where to Start if Your Company Has No Cybersecurity Strategy
Everything does not need to be implemented at once. There is a logical order that allows risk to be reduced progressively without disrupting operations. First: protect access with multi-factor authentication. Second: make sure backups exist and actually work. Third: keep systems updated. With those three foundations in place, the level of exposure drops dramatically.
From there, team training, device management, network segmentation, and supplier reviews are additional layers that can be incorporated in an orderly way.
At Open Tech We Protect Your Company's Cybersecurity
We help small business implement a realistic cybersecurity strategy: we analyse current exposure points, prioritise the highest-impact measures, and support implementation without complicating day-to-day operations. Without selling more technology than is actually needed.
If you want to know the real level of exposure of your company to cyberattacks, get in touch with us. We carry out an initial review with no commitment.
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