Ransomware Protection for Construction Firms: 5 Steps You Can Take This Week
Construction ransomware attacks are up 41%. Here are five concrete steps any construction firm can implement immediately to reduce their risk.
Construction firms have seen a 41% year-over-year increase in ransomware attacks. The industry's unique characteristics - distributed job sites, heavy subcontractor reliance, large wire transfers, and time-sensitive project schedules - make it an ideal target for cybercriminals.
Here are five steps you can implement this week to significantly reduce your risk.
1. Enable Multi-Factor Authentication (MFA) Everywhere
This is the single most impactful step you can take. Require MFA on: - Email (Office 365 / Google Workspace) - Project management tools (Procore, PlanGrid) - VPN access - Financial systems (Sage, QuickBooks) - Remote desktop connections
Time to implement: 1-2 hours. Most platforms support MFA natively - you just need to turn it on and enforce it.
2. Segment Your Network
Don't let your accounting department's network communicate directly with your job site trailers. If ransomware infects one segment, segmentation prevents it from spreading to the rest.
Basic segmentation: - Corporate office on one VLAN - Job site connectivity on another - Guest/vendor access isolated - Financial systems on a restricted segment
3. Implement Email Authentication (DMARC/DKIM/SPF)
Payment fraud via spoofed emails is the #1 financial cybercrime in construction. Configure: - SPF: Specifies which servers can send email on your behalf - DKIM: Adds a digital signature to outgoing emails - DMARC: Tells receiving servers what to do with emails that fail authentication
This prevents attackers from sending emails that appear to come from your domain.
4. Test Your Backups - Today
Having backups isn't enough. You need to verify: - Backups are completing successfully (check logs) - You can actually restore from them (run a test restore) - They're stored offline or immutable (ransomware targets backups first) - Your recovery time meets your business needs (can you afford 3 days of downtime?)
5. Establish a Wire Transfer Verification Protocol
Create a mandatory policy: any change to banking information for wire transfers must be verified via phone call to a known number (not the number in the email). This alone can prevent six-figure losses.
Beyond the Basics
These five steps will significantly reduce your risk, but they're just the beginning. A comprehensive cybersecurity program for construction firms should also include: - 24/7 endpoint detection and response (EDR) - Security awareness training for all employees - Vendor security assessments - Incident response planning - Regular penetration testing
Veracity Technologies specializes in construction cybersecurity. Schedule a free audit to see where your firm stands.
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Published 2025-11-01 · Last reviewed December 2025