Is she chewing on the cage wires or does she attack them only when someone comes close? If she's chewing, try to figure out why and put a stop to it, but if she's threatening someone by biting the wires occasionally it won't be likely to hurt her.

My Diana ekkie whacks the cage so hard when I walk by that I keep telling her she's going to crack her skull one of these days.  She's being cage protective as a 9 year old female. Funny thing, she is calm when she's not in the cage, until hormones hit, then she's a biting maniac.

Annie