The Monero community is weighing major changes to its proof-of-work (PoW) system after reports that Qubic, an AI-focused mining pool, briefly gained majority control of the network. The incident has revived fears about 51% attacks and prompted discussions on how to strengthen Monero’s security.
Proposals include switching to merge mining with Bitcoin or other major cryptocurrencies, localizing mining hardware, and adopting Dash’s ChainLocks — a system where masternodes quickly lock in the first valid block, preventing chain reorganizations even if malicious miners have greater hashing power.
Joel Valenzuela of Dash DAO noted that the Qubic attack highlights vulnerabilities in ASIC-resistant chains, warning that “any network without strong economic defenses could be at risk.”
According to MiningPoolStats, Qubic currently controls around 2.18 GH/s, making it the largest Monero pool, followed by Supportxmr at 1.18 GH/s. Some community members dispute that Qubic ever held a true majority, claiming it only caused a minor block reorganization.
Still, concerns remain. Kraken temporarily suspended Monero deposits and later re-enabled them with a steep 720-block confirmation requirement, cautioning that deposits could be halted again if risks persist.
Meanwhile, Qubic’s community voted to make Dogecoin its next mining target, though founder Sergey Ivancheglo admitted this would take months of development, with the pool staying focused on Monero for now.
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