Secbolt Cord Protectors from Pets No Chew, 10ft - 1/2 inch Ultra Durable Cord Covers for Pets, Bite-Resistant Cable and Wire Protector for Cats, Dogs, Rabbits - Black

The only way to fully bunnyproof is to remove all hazards and/or get a tall, metal exercise pen, unfortunately. They sell no-chew cord protectors like this https://a.co/d/08vTH670 but a determined bunny with enough time could still chew through eventually if not being watched. And you don’t want them to ingest a lot of random stuff either.

https://a.co/d/05vAoZbQ This one simple lifesaving trick that endocrinologists hate.