10 Things Everyone Always Gets Wrong About Venom
4. Sound Is Their Biggest Weakness
Spider-Man 3 depicted sound as the best way to deal with the symbiote, and it is an effective method, but it is not the best way to tackling the alien.
Fire by far the more effective countermeasure, and is something that the symbiote is completely afraid of. They do mention this in Venom's solo film, which shows both sound and fire to be an effective way of destroying the alien symbiotes, with the fiery blaze in the film's finale dispatching main antagonist Riot.
Venom's fear and vulnerability to fire are often played around with in different comics, but when he comes up against a life-threatening amount of it, like any of us, it can be lethal, and much more impactful than high frequency noises and reverberation.