Construction is the most ransomware-targeted industry in 2025. Colorado general contractors face business email compromise, ransomware locking project files, and phishing attacks designed to exploit fast-moving jobsite communication. This guide covers the four biggest cybersecurity threats to Colorado GCs, what’s actually at stake when an attack hits, and five practical protections every contractor should have in place — from BEC payment verification protocols to managed IT with 24/7 monitoring.