Ravencoin says critical network vulnerability was discovered and exploited

Ravencoin said a critical consensus vulnerability was discovered and exploited on its network, causing vulnerable nodes to validate invalid blocks. The first confirmed invalid block appeared at height 4,487,776. Ravencoin said 2Miners and RavenMiner, which currently control more than half of the network hash rate, are mining a chain starting from height 4,487,776 while excluding the branch where the vulnerability attack occurred. If that chain becomes the main chain, it could trigger a deep chain reorganization covering about three days. Ravencoin recommended centralized exchanges temporarily suspend RVN deposits and withdrawals until the network stabilizes.