She's in her 70s, her name is Ann Timson and she's from Northampton in central England.
But thanks to this video from the U.K., she's now known around the world as "Handbag Granny."
Timson sprinted into action Monday when she saw six would-be robbers trying to smash their way into a jewelry store. At first, The Guardian says, she thought they were some bullies trying to beat up another kid.
"I started whacking the lads over the head with my shopping bag," she tells the BBC. the not-so-tough thugs fled. And she says she'd do it again.