Security Measure Online; Prevents Access or Attacks
This page is the CodyCross answer for the clue below from Inventions, Group 49, Puzzle 2.
Question is: Security Measure Online; Prevents Access or Attacks
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.