Jargon Buster
Plain English meaning, where you may see it, and what to read next if this word still feels unfamiliar.
Quick meaning
A security system that blocks dangerous internet traffic.
Think of it like this
Like a security gate at a building entrance.
Where you may see this
You may see this in login screens, warning messages, banking apps, or scam-prevention advice.
Why it matters
Understanding this word helps you protect your money, personal information, and online accounts.
Say it simply
Firewall means: A security system that blocks dangerous internet traffic.
Keep going
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