security perimeter
Guarded outer edge
A security perimeter is the boundary of a protected area—physical or digital.
In physical security, it's the outer edge that must be breached to gain access: Guards patrol the security perimeter.
In cybersecurity, it refers to the boundary between trusted internal networks and untrusted external ones, defended by firewalls and other controls.
- firewallNetwork access control system
- checkpointInspection station on route
- fenceBoundary structure between properties
- surveillance cameraDevice recording observed areas
- guard postManned security station
barbed wire fence · patrol route · barrier · motion detector · turnstile · honeypot · VPN · razor wire · DMZ · buffer zone · access control · badge reader · risk assessment · contingency plan · encryption · antivirus software · bollard · no-man's-land
- barrierswalls, wall, fences, fence, barrier
- buffer zonesbuffer zone, buffer state, buffer strip, DMZ, demilitarized zone
- LNG facilitiescryogenic storage, storage tanks, storage tank, jetty, berth
- bordersborder, boundary, border crossing, national borders, boundary line
- danger zonesdanger zone, danger zones, disaster zone, war zone, war zones
- protectionbodyguard, armor, gloves, shield, hard hat
security perimeterinner sanctum
Innermost private place
safe room · command center · nerve center · interior · security center
security perimeteropen access
Free public scholarly content
no-man's land · free passage · public space · common area · demilitarized zone
security perimetervulnerability
Openness to harm
point of entry · weak spot · exposed flank · blind spot · weak point
security, perimeter, secure, secured, securing, securely, insecure, insecurity, securities