Security Experts Flag Possible 51% Attack on Monero, Citing 6-Block Reorganization

Main Idea
Security experts warn of a possible 51% attack on Monero, with reports indicating Qubic project has captured 51% of the network's hashrate, leading to a six-block chain reorganization and concerns over network security.
Key Points
1. Slowmist security team reported a 51% attack on Monero (XMR) on Aug. 12, 2025, resulting in a six-block chain reorganization.
2. Qubic founder Sergey Ivancheglo claimed Qubic had seized control of Monero's computational power, though independent confirmations are pending.
3. Monero's price dropped over 5% in 24 hours and 14% for the week following the alleged attack.
4. Ledger CTO Charles Guillemet estimated the cost of sustaining the attack at $75 million per day, highlighting the threat to Monero's network.
5. SeraiDEX developer Luke Parker argued that the six-block reorganization does not necessarily confirm a successful 51% attack, suggesting it could be due to an adversary with high hash power getting lucky.
Description
Several reports indicate that the Qubic project has captured 51% of the network’s hashrate, with some observers warning that Qubic mining pools have the ability to reorganize the blockchain and block certain transactions. Alleged 6-Block Chain Reorg Spurs Fears in the Monero Community On Aug. 12, 2025, at 6 a.m. Eastern time, the Slowmist security
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