Quick meaning
Using the same password on multiple accounts, which is dangerous because one breach compromises all of them.
Think of it like this
Like using the same key for your front door, car, and office — one theft unlocks everything.
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
Password Reuse means: Using the same password on multiple accounts, which is dangerous because one breach compromises all of them.