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firewall

/ˈfaɪərwɔːl/  ·  say it: FY·er·wawl

a system that blocks unauthorized network access

In Technology & Computing

In more detail

1. (noun) a wall or barrier designed to prevent fire from spreading from one area to another

2. (noun) a computer system or software that controls which data can enter or leave a network, used for security

Examples

• 1. The building has a firewall between the garage and the house.
• 2. You should install a firewall to protect your computer from unauthorized access.

Nearby in Technology & Computing

algorithm, bandwidth, encryption, latency, cache, server