69% of Dogecoin's active nodes were rendered dysfunctional after a hacker exploited the network's weakness.The exploit, known as 'DogeReaper,' allows hackers to launch segmentation faults at Dogecoin nodes, terminating them.Sequentia developer Andreas Kohl claimed responsibility for using the DogeReaper vulnerability on older nodes.The attack exposes a crucial vulnerability in Dogecoin's decentralization system, putting pressure on the team to fix the loophole.