Ransomware Attacks Surge 47% in Early 2025: Critical Infrastructure Under Siege

A 47% jump in six months, concentrated in the industries that make up the Houston metro - and confirmed disclosures still lagging behind the real count.

The 2025 ransomware surge is a 47% year-over-year rise in logged attacks during the first half of the year, driven by sharp increases in the manufacturing, transportation, technology, and legal sectors that dominate Houston-area business.

Comparitech's H1 2025 roundup counted 3,627 attacks against 2,472 a year earlier. Of those, 445 were confirmed by the targeted organizations, breaching more than 17 million records - and Comparitech notes that confirmed figures climb for months after the fact, so the real total runs higher than what is public today. Business-sector attacks rose 50% overall. Government entities saw close to a 60% increase and schools a 23% increase. Utilities were the lone sector to improve, with attacks down 31%.

The chart below breaks the H1 2024 versus H1 2025 change out by industry. Read it as a target map: the taller bars are the sectors attackers are prioritizing, and most of them are heavily represented across Katy, Cypress, and the wider Houston metro.

Here is the part that matters for a smaller firm. The most active groups behind these numbers - Akira with 347 victims, Clop with 333, and Qilin with 318 - run as organized operations that hit victims of every size. In 35 years doing this, the pattern I keep seeing is that the business that gets encrypted is rarely the one running something exotic. It is the one that skipped a fundamental: an unpatched server, backups nobody had test-restored, an account without multi-factor authentication.

The industries growing fastest as targets are the ones concentrated along the Gulf Coast - and many sit next to the critical infrastructure attackers most want to reach.

Houston-area businesses are exposed because the sectors driving the 2025 surge - manufacturing, transportation, energy, and legal services - are precisely the industries concentrated across the Houston metro, and many of them connect to critical infrastructure through supply chains and shared vendors.

Houston's economy leans on energy, petrochemicals, logistics, and the manufacturing and engineering firms that serve them. Those are critical-infrastructure-adjacent businesses: a mid-sized fabrication shop in Cypress supplies a refinery, a logistics firm near the port moves freight for utilities, a Katy engineering practice holds design files for pipeline work. Attackers know that a smaller vendor is often the softer way into a larger operation, which is why supply-chain-adjacent SMBs get scanned as hard as the big names.

Two Gulf Coast realities sharpen the risk. First, the region's hurricane season already forces businesses to think about downtime, and a ransomware event is a self-inflicted outage on top of the weather-driven ones - the same backup-and-recovery discipline covers both. Second, operational-technology exposure is real here: manufacturers and energy-services firms often run older control systems on the same networks as their office IT, and that flat-network setup is exactly what lets ransomware spread from a single clicked email into production systems.

Turn the surge into a plan. These are the defenses that stop or contain the automated ransomware behind most of the 47% - in the order they earn their keep.

A Houston SMB responds to the 2025 ransomware surge by verifying a short list of controls - offline backups, patching, multi-factor authentication, network segmentation, endpoint detection, email filtering, and a tested response plan - because these are the defenses that block or contain the automated attacks driving the increase.

• Tested, offline backups (3-2-1). Three copies, two media types, one offline or immutable. Backups are what turn a ransomware hit from a shutdown into an inconvenience - but only if you have actually restored from them. Untested backups fail exactly when you need them.
• Patching on a schedule. Most exploited flaws already had a fix available. Put operating systems, firewalls, VPN appliances, and internet-facing software on a real patch cadence, not a "when we get to it" list. Patch management closes the doors scanners knock on first.
• Multi-factor authentication everywhere. MFA on email, VPN, remote access, and any account touching business or client data. It blocks the stolen-credential attacks that open most intrusions, even when the password is already loose.
• Network segmentation. Keep office IT, operational technology, and guest access on separate segments. Segmentation is what stops one infected laptop from reaching the file server, the backups, and - for a manufacturer or energy-services firm - the control systems.
• Modern endpoint detection (EDR). On every device, including remote workers' laptops. Behavior-based EDR catches ransomware activity that signature-only antivirus misses, and it buys time to isolate a machine before encryption spreads.
• Email security and phishing filtering. Email is still the number-one delivery route for ransomware. Filter dangerous messages before they reach an inbox, and train staff to report the ones that slip through.
• A written, tested incident response plan. Know who to call, how to isolate systems, and how to restore before an attack, not during one. A business continuity plan you have rehearsed is the difference between hours of downtime and weeks.

CinchOps is a managed IT services provider based in Katy, Texas, serving small and mid-sized businesses across the Houston metro area.

CinchOps specializes in cybersecurity, network security, managed IT support, VoIP, and SD-WAN for businesses with 10-200 employees. Against a threat like the 2025 ransomware surge, that means the readiness checklist above set up, tested, and kept running for you:

• Backup and recovery. 3-2-1 backups with an immutable offline copy, test-restored on a schedule so ransomware becomes recoverable instead of fatal.
• Patching and endpoint protection. Updates on a real cadence and behavior-based EDR on every device, watched around the clock.
• Identity and segmentation. MFA enforced on every account, and networks segmented so office IT, operational technology, and guests stay apart.
• Email security and response planning. Phishing filtered before it lands, plus a written incident response plan rehearsed before you need it.

We serve businesses across the Houston area, including Houston, Katy, and Cypress, and we understand the stakes for a manufacturer, an energy-services firm, or a law firm sitting close to critical infrastructure. A 47% surge is not a reason to panic-buy tools - it is a reason to confirm the fundamentals are actually in place. If you run a business in the Houston metro, talk to CinchOps for a free assessment and a clear read on where you stand against this checklist.