In a twist worthy of a crypto thriller, Qubic<\/strong>, a mining pool affiliated with IOTA, has shaken Monero<\/a> (XMR)<\/strong> by claiming control of 51% of its hashrate<\/strong> on August 12, 2025, causing a 6-block reorganization<\/strong> and a 6.65% price drop<\/strong>.<\/p>\n\n\n\n Presented as a “stress test” by Sergey Ivancheglo, IOTA co-founder, this action highlighted a critical vulnerability<\/strong> in RandomX, Monero’s anti-ASIC algorithm. While the XMR community downplays the incident, debate about privacy blockchain security has ignited.<\/p>\n\n\n\n Indeed, Qubic, leveraging Useful Proof of Work (UPoW) for AI calculations, saw its Monero hashrate surge from 2%<\/strong> in May to 51% in August<\/strong>, mining 63 blocks out of 122 in a single day. This spike caused a 6-block reorganization without double-spending or prolonged censorship, but alarmed privacy advocates. A week-long DDoS counterattack slowed Qubic but didn’t eliminate the threat.<\/p>\n\n\n\n