CoinVoice has recently learned that, according to the comments from Slow Mist founder Yu Xian, the Monero coin has been subjected to a 51% attack incident. There are significant doubts within the community about whether it is truly a 51% attack in the real sense, but there are no doubts regarding the reorganization of blocks (for example, 6 blocks). The Qubic mining pool claims to control 51% of the hash power, but many community members believe they control about 33% of the hash power. This debate is not easy to verify, and to definitively prove a 51% attack, a double-spend attack test must be initiated. Previously reported, the IOTA co-founder Sergey Ivancheglo's project Qubic quickly accumulated a large amount of Monero (XMR) hash power through the 'Useful Proof of Work (uPoW)' mechanism. On August 12, Qubic briefly controlled 52.72% of the Monero network’s hash rate (approximately 3.01 GH/s). Once exceeding 51%, Qubic can reject blocks from other mining pools, leading to chain reorganization, double spending, or transaction censorship. The Monero community has launched resistance and defense actions, while the Qubic side claims this move is a technical demonstration, not a malicious attack. [Original link]
