Could, but it's never happened with Bitcoin. The computational power required to make the competing chain longer would be large enough to deter any attempts. These miners would prefer to direct resources toward mining legitimate blocks. A 51% attack on Bitcoin would require almost $900,000 per hour. It did happen with Litecoin, tho. BSV suffered a 51% attack in October 2022.... an unknown miner commanded more than 80% of the network’s hash power and was able to earn undeserved rewards by mining empty blocks.
Could, but it's never happened with Bitcoin. The computational power required to make the competing chain longer would be large enough to deter any attempts. These miners would prefer to direct resources toward mining legitimate blocks. A 51% attack on Bitcoin would require almost $900,000 per hour. It did happen with Litecoin, tho. BSV suffered a 51% attack in October 2022.... an unknown miner commanded more than 80% of the network’s hash power and was able to earn undeserved rewards by mining empty blocks.