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Your office is a trailer, a truck and a phone. Bids, drawings, change orders and payments move by email all day. You get devices and accounts protected wherever the work is, and a payment process a scammer can’t talk their way around.
Construction runs on email, shared drives, project management apps and phones in the field. Large sums move on short notice: progress payments, retainage, supplier invoices and change orders. That combination is exactly what payment fraud is built for.
Attackers have noticed. Ransomware trackers ranked construction fourth among the industries most hit in early 2026, and ransomware groups go after firms that can’t afford to stop work on a deadline.
Most of the fixes don’t need new hardware. They need multi-factor sign-in on every account, a call-back rule for payment changes, managed phones and laptops, and backups of the project files you’d need to keep building.
Construction isn’t heavily regulated for data, but your owners, primes and insurers may be.
Construction is now a top target for ransomware and payment fraud. Here’s how it usually happens, with the numbers behind it and what I do about each.
Attackers read the mailbox, wait for a real payment and send new bank details that look exactly right. Once a wire clears, the money is very hard to get back.
What I doA call-back rule for any payment change using a number you already have, multi-factor sign-in on email, alerts on suspicious mailbox rules, and training for everyone who approves payments.
Source: Arkansas Business, on why construction firms are targeted
Construction climbed to fourth among the industries most hit by ransomware, behind only manufacturing, technology and healthcare. A contractor facing contract penalties has every reason to pay quickly, and attackers know it.
What I doMonitored endpoint protection, patched computers and network gear, and backups of project and accounting files kept offline and tested.
In the same survey, 70% of general contractors reported a cyber threat. Drawings, RFIs, submittals and photos are spread across laptops, phones and apps, and when ransomware locks them the job stops.
What I doProject files kept in a managed cloud with version history, backups ransomware can’t reach, and a tested plan to get crews working again.
Source: Dodge Construction Network and Egnyte survey, via Construction Dive (2023)
Crews share tablets and passwords, personal phones carry company email, and when someone leaves, their access often doesn’t.
What I doManaged phones and laptops that can be wiped remotely, individual accounts with multi-factor sign-in, and a checklist for removing access the day someone leaves.
Source: Verizon 2026 Data Breach Investigations Report, via TechRepublic
Related services: Managed IT services · Network security & cybersecurity · Microsoft 365 & Google Workspace · AI consulting & integration · Staff training
AI is useful for the paperwork that follows every job: estimates, daily logs, safety plans and proposals. Keep owner drawings and bid numbers out of public tools.
Your crews already take hundreds of photos a week, and your equipment already reports its hours. AI can turn both into answers, and take a chunk out of the paperwork in between.
Site photos sorted, tagged and checked automatically, so they become records instead of a camera roll.
Best forContractors with thousands of photos and no time to sort them.
Telematics and maintenance history used to keep equipment running, and AI to read specs and submittals faster.
Best forFirms running their own fleet and a heavy document load.
Because money moves through you in large, predictable payments, and attackers only need one convincing email. Small contractors are often easier to fool than the owners and suppliers on either side of them.
One rule does most of the work: any change to bank details gets confirmed by phone, at a number you already have, before money moves. Add multi-factor sign-in on email and the most common schemes stop working.
It can be managed. Company email and files can live in a protected work profile that can be removed without touching personal photos or apps, so a lost phone or a departing employee doesn’t take your data with them.
Yes. I’ll help you answer it accurately, fix the gaps it exposes, and keep the answers on file so the next one takes minutes instead of days.
Figures and rules on this page were checked against these sources on October 27, 2026, using the latest edition available. This page is general information, not legal advice.
Tell me how your office and crews work today. You’ll get a short list of fixes, starting with the ones that protect your cash flow.