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For Construction Firms

One hijacked project manager inbox is a wire transfer you will never get back.

Fake wire instructions from a hijacked PM inbox can cost a construction firm a full progress payment in one transfer. The attacker waits for a subcontractor payment and changes the routing number. We catch the hijack before the invoice goes out.

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  • Month to month
  • No setup fees
  • Cancel anytime
$3.05B

Business email compromise losses reported to the FBI in 2025, across 24,768 complaints. Hijacked payment emails are the core of the scheme.

Source: FBI IC3 Internet Crime Report, 2025

Credentialed, insured, operational

  • RegisteredND LLC
  • IRS registeredEIN on file
  • E&O insured$1M per claim, $2M total
  • EncryptedYour data, at rest and in transit
  • Sign-inAlways a second step
  • Audit trail365-day retention

Threats we catch

Three attacks aimed at construction firms.

36 detection engines check your Microsoft 365, Google Workspace, AWS and Cloudflare accounts every five minutes. Critical threats surface instantly. Normal activity gets filed away.

Subcontractor wire fraud

An attacker hijacks a project manager or accounts-payable inbox, waits for a real sub to invoice, and sends spoofed wire instructions from the actual email thread. Funds leave before anyone verifies by phone.

Bid and blueprint theft

Competitor reconnaissance via a compromised estimating inbox. Sealed-bid projects, architectural drawings, and cost breakdowns exfiltrated to a rival firm or a data broker.

Ransomware on project files

Your shared project drives get encrypted mid-job. Without live monitoring, the attacker has been inside for weeks before the ransom note. SentinelSMB spots the reconnaissance phase and alerts you early.

36 detection engines Every five minutes
Subcontractor wire fraudFlagged. You get a text with the steps to fix it.

Example alert for a made-up business.

Your blind spot

What a typical IT setup does not watch.

  1. Your PMs work from job-site trailers, hotels, and personal phones — and their Microsoft 365 sign-ins from new locations look exactly like an attacker from anywhere.
  2. Your accounts-payable process relies on email trust — if the email was compromised, the verification phone call goes to the attacker.
  3. Federal jobs that involve controlled unclassified information now require CMMC, and a monitoring record makes the bid paperwork easier to answer.
  4. A breach during a sealed-bid window can hand your number to a competitor and cost you the project.

The screen is an example for a made-up business, not real customer data.

Compliance alignment

The rules and frameworks we line up to.

SentinelSMB provides the continuous-monitoring, access-control, and incident-response controls these frameworks require. Pro subscribers get the audit-ready evidence package.

  1. CMMC 2.0 Level 2

    Federal contractor prep

    If you bid on Department of Defense work, CMMC is now required: the DFARS CMMC rule took effect November 10, 2025, and third-party Level 2 assessments phase in from November 10, 2026. SentinelSMB supports the monitoring and incident-response practices CMMC assesses.

  2. NIST SP 800-171

    Controlled Unclassified Information

    Federal contractors handling CUI must implement the 110 NIST SP 800-171 security requirements, including monitoring systems to detect attacks and unauthorized use (3.14.6 and 3.14.7). SentinelSMB supports those monitoring and alerting requirements.

  3. Owner and GC contracts

    Cyber due diligence clauses

    If an owner or general contractor adds cybersecurity or data-protection clauses to your contract, a monitoring record and a 365-day audit trail give you something concrete to point to.

  4. State breach notification

    Employee and subcontractor data

    Construction firms hold employee SSNs, I-9 documents, and subcontractor tax IDs. Every US state requires notification when this data is accessed without authorization.

Questions

Questions construction firms ask.

Text Cole at (701) 391-5973
Do we need this if we are not bidding federal work?

Yes. Private commercial owners, general contractors, and insurance carriers are all adding cyber-security requirements to contracts and renewals. And the wire-fraud risk is independent of who your customer is — it is about having an inbox that holds payment instructions.

Can SentinelSMB help with our CMMC prep?

SentinelSMB provides the continuous-monitoring, audit-log, and incident-response capabilities that map directly to CMMC 2.0 practices. We do not issue a CMMC certification, but we generate the monitoring evidence a C3PAO will expect to see.

What about jobsite Wi-Fi and field laptops?

SentinelSMB monitors your cloud accounts — Microsoft 365, Google Workspace, AWS, Cloudflare — wherever your people sign in from. A sign-in from a new jobsite IP in a normal pattern is fine. A sign-in from a foreign IP at 3 AM is not. We tell the difference.

How fast will we hear about a real threat?

Scans run every 5 minutes, 288 times a day. Critical findings fire immediate alerts via SMS, email, Slack, or Teams. For most threat categories you will hear within 5-10 minutes of the activity occurring.

Lose the wire, lose the job. Lose neither.

Under 10 minutes to connect. No hardware. No IT-speak. Cancel in one click. Catch the hijack before the invoice goes out.

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