Quick meaning
Deliberately attempting to hack a system with permission to find security weaknesses before real attackers do.
Think of it like this
Like hiring a locksmith to try to break into your own home to find weak points.
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
Penetration Testing means: Deliberately attempting to hack a system with permission to find security weaknesses before real attackers do.