Monero Jumps 7% Despite Largest-Ever Reorg Wiping 117 Transactions
Monero suffered its most extreme blockchain reorganization on Sunday, September 14, when 19 blocks have been changed by a competing chain. The incident, which unfolded between block heights 3,499,659 and three,499,678, lasted roughly 43 minutes and rewrote 36 minutes of chain historical past, in line with blockchain explorer knowledge.
The reorg compelled the community to discard 118 beforehand confirmed transactions, unsettling customers and exchanges. Analysts described the occasion as unprecedented in Monero’s historical past and famous it adopted current reviews that Qubic had seized control of more than 51% of the network’s hashrate, a place that would permit chain rewrites or double-spending at a price of round $100,000 per day.
$6B Privacy Coin Monero Was Just Hijacked for $100K/Day
Monero, the $6 billion privateness coin lengthy touted as considered one of crypto’s most censorship-resistant networks, has suffered a significant setback.
A single mining entity, the Layer-1 blockchain Qubic, claims it seized 51% of Monero’s…
— Cryptonews.com (@cryptonews) August 18, 2025
Despite the disruption, Monero’s native coin, XMR, saw a worth uptick. XMR rose 7% previously day earlier than retracing to the present worth. As of this press time, XMR trades at $305, extending its weekly and month-to-month positive aspects to 12% and 29%, respectively.
118 Transactions Invalidated After Monero’s Deepest Chain Reorg
Monero’s largest blockchain reorganization thus far worn out 118 beforehand confirmed transactions, creating seen disruption for customers and exchanges. Blockchain researcher Andy Fitche confirmed that the competing chain invalidated confirmed funds, noting that wallets displayed alerts displaying transactions marked in purple as “invalid.”
Avdiu Sazan, one other group analyst, said the competing blocks have been linked to the mining pool Qubic. He described the occasion as “an informal 18 blocks reorg.” Providing potential causes for the current occasion, crypto podcaster Xenu suggested Qubic aimed to “cease the bleeding” of XMR’s worth, sparking debate on the chain’s future.
Reorganizations happen when two variations of a blockchain compete, and miners lengthen completely different ledgers. The longest legitimate chain in the end turns into the accepted historical past, discarding blocks on shorter chains.
While one- or two-block reorgs sometimes happen on proof-of-work chains as a consequence of latency or simultaneous block discovery, Monero’s 19-block reorg is very uncommon and factors to concentrated mining energy or instability.
The episode has reignited dialogue round Monero’s community safety. The group has floated potential safeguards, together with localized mining, merge mining, or Dash-style ChainLocks, to scale back the chance of deep reorgs and 51% assaults.
None, nevertheless, have been adopted, leaving mining swimming pools like Qubic with disproportionate affect. Notably, the most recent reorg exceeded Monero’s built-in 10-block safety, underscoring ongoing vulnerabilities within the protocol.
Monero Supporters Double Down on the Network Despite Security and Privacy Concerns
Monero supporters rallied behind the privacy-focused cryptocurrency this week regardless of mounting scrutiny after its deepest blockchain reorganization thus far. Advocates took to X, insisting that Monero stays the one asset providing “true freedom,” contrasting its privateness ensures with Bitcoin’s traceability underneath know-your-customer (KYC) regimes.
“Monero is the one protected haven,” one supporter posted, whereas one other, Meta Ryuk, stated the asset poses distinctive challenges for regulators. “Bitcoin is a haven for them. Monero is a problem.” Ryuk dismissed claims of traceability, calling them “unfounded.”
Critics, nevertheless, questioned the community’s reliability following the 43-minute chain rewrite that invalidated 118 confirmed transactions.
Dash DAO’s Joel Valenzuela likened the disruption to “Visa taking place for 40 minutes,” warning that such instability can be unacceptable for mainstream techniques.
A crypto analyst said he would cease accepting XMR funds till the problem is resolved, calling the community “unreliable.”
Meanwhile, Monero has been beforehand implicated within the legal economic system, significantly for laundering funds from CSAM sales, in line with Chainalysis’s 2024 Crypto Crime Report. Vendors typically convert Bitcoin into Monero through immediate exchangers, making the most of its privateness options and lack of KYC to obscure transactions.
Similarly, Finnish authorities traced Monero in the Julius Kivimäki case, the place the hacker allegedly transformed Bitcoin ransom funds into Monero through a non-KYC trade to obscure the funds earlier than transferring them to a devoted pockets.
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