Glossary

DMZSeparation

Tags: Glossary

Demilitarized zones (DMZ) act as buffers between a trusted network (Supervisory Control and Data Acquisition or SCADA network) and the corporate network or Internet—separated through additional firewalls and routers—which provide an extra layer of security against cyber attacks. Utilizing DMZ buffers is becoming an increasingly common method to segregate business applications from the SCADA network and is a highly recommended additional security measure. A DMZ is sometimes called a “Perimeter network” or a “Three-homed perimeter network.” SI Security, a leading intelligence security company, defines a DMZ as “a network added between a protected network and an external network in orderto provide an additionallayer ofsecurity.”