HSM3 Vanessa Hudgens -- electrical menace!

The Disney darling has a message for any potential masher or mugger.

Don't move or I'll zap you!

She's finally moved into a home of her home but is a scared about flying solo - so she's picked up a hand bag sized TASER that emits a powerful zap of pain.

"I keep a taser in my purse for self-defense" the skittish star said. "I'm moving into a house by myself and it's scary."

Maybe you should ask costar and "BF" Zac Efron to move in with you?