Ive heard of a few cuda attacks but always due to mistaken identity, stupidity, or murky water.
I was on a dive off of the coast of Lanai and I took a drop in about 70ft of water. I was lying there not seeing anything for about 30 or 40 seconds. I started dusting and scratching the bottom when I noticed something in the corner of my eye. WHen I turned around there were about 15 Great Baracuda all over 40-50lbs about 4 feet away from my head all pointed directly at me.
Needless to say it spooked me a little. They were just coming in to check me out, no harm done. I hesitated shooting them because they are known to have cig poisoning here.
