Security System to Block Online Threats
This page is the CodyCross answer for the clue below from African grasslands, Group 1560, Puzzle 2 (Great Rift Valley).
Question is: Security System to Block Online Threats
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.