About this interactive
Operational technology (OT) is the technology used to create and deliver a company's products and services, usually the systems that run industrial operations: PLCs, SCADA, DCS, RTUs, CNC machines, building management and lighting controls. It is expensive to roll out, so it often stays in place for decades. The lesson lists its common weaknesses; four of them are here.
Legacy, unpatched systems: equipment too costly to replace runs long past the end of its patches.
Lack of segmentation: many OT networks were built before segmentation was common, so a compromise in IT can reach OT, and the other way round.
Weak authentication and access control: devices left open, with shared or default logins.
Insecure communication protocols: older protocols that send commands and data unencrypted and unauthenticated.
To sort a card, ask what was wrong before the change was made.
About TechKnowSurge
TechKnowSurge builds IT and cybersecurity professionals through hands-on, concept-first training built around real understanding — not memorization. Free interactive tools, structured programs, and 25+ years of real-world experience, all in one place.
Explore free tools and programs →