Ransomware Targets Small Businesses with Twice the Force

The Enemy Chose the Weaker Side

When Verizon's annual data breach report, the DBIR 2025, revealed that 88% of intrusions at small and medium-sized businesses involve ransomware, compared to just 39% at large corporations, the message was clear and brutal: cybercriminals made a strategic choice, and that choice was you.

This is not paranoia. It is criminal arithmetic. SMBs offer valuable data, critical processes, and, in most cases, significantly weaker security infrastructure. For a ransomware group operating like a business, with division of labor, technical support, and revenue targets, attacking a mid-sized company in Brazil, Italy, or the US is more efficient than going up against a multinational's security team with dozens of analysts and an eight-figure budget.

The Logic of Double Extortion

Modern ransomware no longer works the way it used to. The narrative of "they encrypted my files, I paid the ransom, it's over" belongs to the past.

Today, attackers operate using what the industry calls double extortion: before encrypting anything, they exfiltrate the data. Contracts, customer records, financial information, intellectual property. Then comes the encryption, along with two simultaneous ransom demands: one to restore access to the systems, another to ensure the stolen data is not published or sold.

For an SMB, this creates existential pressure. We are not talking about a locked system alone. We are talking about a threat to reputation, to clients, to active contracts, and, in cases involving personal data, to legal obligations under the LGPD.

I see this scenario up close in the work we do with clients in Brazil. The question is no longer "will I be attacked?" The question is "when, and am I prepared?"

Why Paying Does Not Solve the Problem

The pressure to pay is understandable. When an ERP system is locked, when orders cannot go out, when operations stop, every hour carries a real cost. The temptation to pay and "just get it resolved" is enormous.

But the data is unambiguous: paying the ransom does not guarantee full data recovery, does not eliminate the threat, and frequently signals to the criminal market that the company is a paying target. Companies that pay are attacked again at a disproportionate rate.

Furthermore, depending on the criminal group involved, making a payment may constitute a violation of international sanctions, a layer of legal risk that few SMB managers consider.

What Actually Works

The good news, and there is some, is that the most effective protective measures against ransomware do not require a Fortune 500 budget. They require discipline, consistency, and the right tools.

Offline Backups, Tested and Current

This is the non-negotiable point. A backup that lives connected to the same network that was compromised is not a backup; it is a second victim waiting to happen. Offline backups, with at least one copy outside the production environment and tested regularly to confirm that restoration actually works, are the difference between an outage measured in hours and a crisis measured in weeks.

Accessible EDR Already Exists

Endpoint Detection and Response (EDR) tools, which monitor suspicious behavior in real time rather than relying solely on known virus signatures, are no longer exclusive to large enterprises. Solutions such as CrowdStrike Falcon Go, SentinelOne, and other mid-market options are within reach for SMBs with dozens or hundreds of endpoints. The monthly cost per device is a fraction of the cost of a single incident.

Patch Management: The Door Nobody Closes

Most successful ransomware attacks do not exploit zero-day vulnerabilities. They exploit known flaws, with patches that have been available for months. Keeping operating systems, third-party software, and firmware up to date is one of the highest-return security actions per unit of effort, and it is still systematically neglected.

The Decision Nobody Wants to Make Until It Is Too Late

In consulting, I have learned that the biggest obstacle is not technical. It is psychological. Most SMB owners and executives know, at some level, that their protection falls short of what is needed. What is missing is the step of converting that diffuse awareness into a concrete budget priority, before an incident occurs.

The Verizon report is an external data point. The average cost of a ransomware attack on an SMB, including downtime, recovery, legal fees, and reputational damage, frequently runs into hundreds of thousands of dollars. The cost of preventive investment is a fraction of that.

The question for every SMB CEO and operations director today is not whether cybersecurity matters. It is why it is not already on this week's agenda.