OT network visibility still blocked by legacy equipment
Big critical infrastructure operators use an average of seven different security tools, yet most of them still lack a full view of the assets on their operational technology (OT) networks. That is the main finding of a Palo Alto Networks survey of more than 1,600 security and operations leaders.
OT refers to the hardware and software that monitor and control physical processes, such as industrial machinery, power systems and production lines. Unlike office IT, much of this equipment stays in service for decades.
Seeing a device is not the same as securing it
Legacy OT is the visibility problem respondents named most often, at 52 percent. A further 42 percent say legacy equipment that cannot be patched is their single biggest cybersecurity risk.