The team that developed Bitcoin Gold (BTG), a bifurcated project, has announced a 51% attack. According to the official disclosure, THE BTG network has been hit by 51% attacks lasting nearly 10 days. However, on July 2, the BTG team had issued an attack alert to the mine pool and the exchange and issued version 0.17.2, which included checkpoints at 640,650 blocks. The BTG team reminds all BTG Core nodes to upgrade to version 0.17.2.