- Monero’s 18-block reorganization raises double-spending concerns.
- Qubic’s significant hashrate share impacts network stability.
- Market confidence affected as exchanges increase confirmation requirements.
Monero experienced an 18-block reorganization on September 14, 2025, raising double-spending concerns due to mining centralization linked to Qubic, led by Sergey Ivancheglo.
The reorganization erased 118 transactions, impacting XMR’s market stability and prompting exchanges like Kraken to suspend deposits, reflecting lost confidence in Monero’s security.
Monero has undergone an 18-block reorganization, effectively erasing 118 transactions. This unprecedented event occurred on September 14, 2025, amid rising centralization in mining, notably connected to Qubic’s mining operations.
The reorganization event involved notable entities such as the Qubic mining pool, led by Sergey Ivancheglo. Qubic now commands a significant portion of Monero’s hashrate, sparking concerns about double-spending vulnerabilities.
The implications are widespread, impacting exchanges and users. Kraken suspended XMR deposits and elevated transaction confirmation levels, indicating a loss of trust in transaction finality. “We have suspended Monero deposits and increased the required confirmations from 10 to 720.” — Kraken Exchange
Financially, Monero faces declining market confidence. The reorganization accelerated XMR price drops, aligning with historical market disruptions previously linked to similar security issues.
Independent analysts and developers highlight technical flaws leading to the event. High orphan rates and Qubic’s mining strategies are reportedly key contributors, as stated by analyst Xenu. source
Industry experts suggest potential regulatory scrutiny as a response to this incident. Historical patterns reflect that such centralization could invite more oversight or technological revisions, impacting future protocol developments and market dynamics.
