Network Security Barrier
This page is the CodyCross answer for the clue below from Department Store, Group 505, Puzzle 1 (Fine Jewels).
Question is: Network Security Barrier
and the answer is: FIREWALL
Word Meaning:
FIREWALL — (architecture) A fireproof barrier used to prevent the spread of fire between or through buildings, structures, electrical substation transformers, or within an aircraft or vehicle.
Definitions from Wiktionary.