The International Shark Attack File investigated 130 incidents of alleged shark-human interaction occurring worldwide in 2018. Sixty-six cases represent confirmed unprovoked shark attacks on humans.
Thirty-four of the remaining cases were confirmed as provoked attacks on humans. Of the remaining 30 cases, nine involved bites to motorized or non-motorized marine vessels "boat attacks", four involved shark-inflicted post-mortem bites "scavenge", five were cases in which the shark-human interaction could not be confirmed based on the available data, one case in which the attack involved an animal that may have been habituated to the presence of humans in the area, and one case involved a diver in a public aquarium.
Ten cases were regarded as "doubtful" in which the incidents did not involve a shark, including one case attributed to an eel and one case attributed to a barracuda.