That's why you never mess with Barracudas. They can slice you open really easily.
It's almost always a case of a hunting or panicked cuda launching itself into the air and making contact with a human though. I've never heard of one actually swimming up to someone and biting them. I'm not saying you should skip taking that shiny metal watch off before heading out on a dive, but it's not a bull shark. I spent years stalking them like bonefish in The Keys, just walking around on the flats in 2-3ft of water, picking out the big ones and dragging a fast tube lure in front of them.
Booom! Good times. Never had a cuda do anything but scram after a catch and release either.
Money says the girl in the pics got bit when the cuda was leaping away, mouth open trying to shake the hook out. A kid I went to high school with got messed up in a similar fashion - he was facing port side with a line in the water, and a big reef cuda somebody had hooked starboard decided to about face and run to the boat like an anti-ship missile. Touched down on the guys left calf. What I saw 4 or 5 days later after the event still looked way worse than her arm. In the time since moving away from the Keys, I heard about a woman who was almost killed by a cuda down there, and teeth weren't involved! She and her boyfriend were in a two seat kayak in the back country somewhere. Tarpon and cuda had been snapping at and chasing down ballyhoo and/or mullet in their area for sometime, they weren't even really paying attention to the surface activity anymore. Suddenly the women is hit in the back and screams. A big cuda had been sailing through the air and stuck her nose first right above her left kidney. She had a huge sucking wound, bleeding all over the place, broken ribs, it was nasty. They called for help but didn't know exactly where they were, and he was limited in what he could do from having to keep pressure on the wound cavity. She barely got out of that with her life.
Airborne game fish can mess people up!