Quick meaning
When a criminal gains unauthorised access to your account and takes control of it.
Think of it like this
Like a burglar changing the locks of your home so you cannot get back in.
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
Account Takeover means: When a criminal gains unauthorised access to your account and takes control of it.