Ransomware hit 48% of breaches in 2026. See what's driving attacks on financial, healthcare, government, and critical infrastructure — and how pen testing plus 24/7 SOC monitoring closes the gap.
Ransomware is no longer a once-in-a-while headline. According to Verizon's 2026 Data Breach Investigations Report, ransomware was involved in 48% of all confirmed breaches this year, up from 44% the year before — the highest share the report has ever recorded. The report also found that vulnerability exploitation has overtaken stolen credentials as attackers' most common way in, the first time that's happened in the report's 19-year history.
For organizations in financial services, healthcare, government, and critical infrastructure, that shift matters. These sectors carry the exact combination attackers look for: sensitive data, regulatory pressure that makes fast payment tempting, and operations where downtime is measured in patient safety, public trust, or service outages — not just dollars.
What's actually happening in these sectors right now
Healthcare has stayed the top ransomware target. In 2026, Good Samaritan Health Center in Georgia notified roughly 10,000 individuals after a ransomware attack on an internal server, and a reported cyber incident at medical device maker Stryker involved claims of wiped devices and stolen data. Attackers increasingly pair encryption with data theft, threatening to leak patient records even if a victim can restore from backup — a tactic that turns a single incident into both an operational and a compliance crisis.
Government agencies are being hit at a pace of roughly one per day. Comparitech tracked 187 ransomware attacks against government organizations in just the first half of 2026, a 13% increase over the prior half-year. A January attack on New Britain, Connecticut knocked city systems offline for more than 48 hours, forcing departments back to manual processes. A February breach in Suffolk, Virginia affected nearly 158,000 people, and a March incident at the Los Angeles City Attorney's Office exposed 7.7 terabytes of data across more than 337,000 files.
Financial services remains a persistent target as well — the regulatory pressure and operational cost of downtime make these organizations more likely to face pressure to pay quickly, which is exactly what attackers are counting on.
And it isn't limited to IT systems. U.S. agencies have warned that Iranian-affiliated threat actors have been exploiting internet-exposed programmable logic controllers (PLCs) across water, energy, and government facilities, altering safety logic and disabling shutdown alarms on operational technology. Where IT and OT converge — a defining feature of critical infrastructure environments — a ransomware or intrusion event can move from a data problem to a physical safety problem.
Why perimeter defenses alone aren't enough
The Data Breach Investigations Report's finding on initial access is the important part. If vulnerability exploitation now beats stolen credentials as the top entry point, it means attackers are increasingly walking through doors organizations didn't know were open — unpatched systems, exposed management interfaces, misconfigured remote access, forgotten assets. Firewalls and endpoint tools matter, but they can't defend a gap nobody has found yet. And once ransomware is inside, the difference between a contained incident and a multi-day outage usually comes down to how fast it's detected and how the environment segments, not whether an alert eventually fired.
That's the gap between having security tools and having security assurance.
Closing the gap: find the exposure, then watch for it 24/7
Two capabilities address this directly, and they work best together.
Penetration testing answers the question every ransomware statistic implies: where would an attacker actually get in, today, in your specific environment? Regular, scenario-based testing — not a once-a-year checkbox exercise — surfaces the unpatched systems, exposed PLCs, weak segmentation, and misconfigurations that scanners miss, before an adversary finds them first. For organizations running SCADA, ICS, or other OT alongside IT, this needs to include operational technology specifically, since a test scoped only to the corporate network will miss exactly the kind of exposure recent advisories have flagged.
Security Operations Center as a Service (SOCaaS) closes the other half of the gap: continuous, 24x7x365 monitoring, detection, and response. Ransomware groups don't wait for business hours, and neither do intrusions into HMI and SCADA displays. A SOC that's watching around the clock — and that knows how to triage an alert in a hospital network differently than one in a water treatment system — is what turns "we had an alert three weeks ago" into "we contained this in minutes."
Together, penetration testing and managed detection form a loop: testing finds and closes the gaps attackers are most likely to use, and continuous monitoring catches what gets through anyway. Neither replaces the other, and in a threat environment where nearly half of all breaches now involve ransomware, relying on just one leaves an organization exposed to exactly the failure mode the other is built to catch.
The takeaway
The specific ransomware groups, PLC models, and victim names in this year's headlines will change. The underlying pattern — attackers finding exposure faster than defenders find it themselves, then moving quickly once inside — won't. Organizations in regulated, high-stakes environments don't need to react to every new advisory; they need a standing practice of finding their own gaps and watching their own environment, continuously.
If it's been a while since your last penetration test, or if nobody's watching your network at 2 a.m. on a Saturday, that's the gap worth closing first.
InfoSight has spent over two decades helping organizations in financial services, government, healthcare, and critical infrastructure identify security gaps and monitor for threats around the clock.
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