Disabling Dogecoin
Co-founder of the Bitcoin sidechain Sequentia Andreas Kol was able to stop 69% of the Dogecoin network nodes by exploiting a previously discovered vulnerability.
He stated that he used a flaw in the system previously identified by researcher Tobias Ruk. The vulnerability was named DogeReaper. It allows remote disabling of any node if its ID is known in the network.
Thus, Kol crashed about 69% of Dogecoin validators. After his intervention, the number of active nodes decreased from 647 to 258. Subsequently, the blockchain's operation was fully restored.
This bug posed a significant threat, endangering the stability of the entire network. Therefore, researchers provided detailed information about the exploit to miners and exchanges, and patches were released for most systems.
