Its not that its unhackable its that the requirements to hack it are virtually impossible due to the consensus mechanism and the shear number of validators out there that continues to grow and having to be able to gain access to and control 51% of those spread out across the world.
Its not that its unhackable its that the requirements to hack it are virtually impossible due to the consensus mechanism and the shear number of validators out there that continues to grow and having to be able to gain access to and control 51% of those spread out across the world.