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Monero: Qubic strikes again with 51% attack, but XMR still rallies

The privacy coin’s network saw 117 transactions reversed in an 18-block reorg, but XMR still managed to rally.

Monero: Qubic strikes again with 51% attack, but XMR still rallies

Key Takeaways

What happened to Monero’s network on the 14th of September?

Monero faced its largest-ever reorg as Qubic rolled back 18 blocks, reversing around 117 transactions in a 51% attack.

What was Monero’s price reaction?

Despite the reorg, XMR rallied more than 7% to above $330 before pulling back near $310.


Monero [XMR] had quite the weekend drama.

The privacy coin’s price popped on the 14th of September, but the celebration was cut with tension as its network faced the biggest security scare in its history.

An 18-block chain reorg wiped out more than a hundred transactions, all tied to yet another 51% attack.

And yes, the culprit was the same: Qubic.

Monero’s biggest ever reorg

Monero’s blockchain went through its largest reorg to date on the 14th of September, when attacker Qubic rolled back 18 blocks and reversed around 117 transactions.

The incident, which started at block 3,499,659 at 5:12 am UTC and ended roughly 43 minutes later at block 3,499,676, has raised doubts within the community about the network’s stability.

monero
Source: Github

This wasn’t Qubic’s first strike.

The AI-focused blockchain and mining pool had already pulled off a smaller six-block reorg just last month.

While the attack raised red flags over Monero’s future reliability, its token surprised the market by rallying more than 7% later on the day, even as broader crypto prices dipped 1%.

Fixes still stuck in debate

The Monero community has long debated ways to secure the network against 51% attacks, but so far, none of the proposals have been implemented.

Ideas ranged from localizing mining hardware to introducing merge mining with Bitcoin [BTC] and other cryptocurrencies, and even adopting Dash’s ChainLocks solution.

Despite the urgency, Qubic still maintains heavy influence over Monero’s hashrate.

monero
Source: Github

Opinions within the community are divided.

Some warn that ignoring block reorg risks will leave a “Sword of Damocles” hanging over Monero’s head, while others argue that Qubic isn’t trying to destroy the project, but rather to stress-test it and bring innovation.

XMR shows resilience

At press time, Monero was trading near $310 after briefly spiking past $330.

The pullback is a sign of strong selling pressure, even as the token managed to hold above the $305 zone. Momentum was still neutral to slightly bullish, and MACD indicated room for further volatility.

monero
Source: TradingView

If bulls defend $305, XMR could attempt another push toward $330. Losing this level might open the door for a retest of $295.

Despite the recent turbulence, Monero’s price structure still showed resilience against weakness.

Disclaimer: AMBCrypto's content is meant to be informational in nature and should not be interpreted as investment advice. Trading, buying or selling cryptocurrencies should be considered a high-risk investment and every reader is advised to do their own research before making any decisions.

Samyukhtha L KM

Journalist

Samyukhtha L KM is a financial journalist and market analyst at AMBCrypto. She covers key market moves, blockchain adoption, and socially-driven crypto trends. She also enjoys providing fresh takes through commentaries on emerging narratives.

AMBCrypto was founded in 2018 with a mission to simplify and bring the latest blockchain and cryptocurrency news to our readers. We have quickly grown into the digital news source for an emerging generation of cryptocurrency enthusiasts, reaching more than a million readers on a monthly basis, across the globe.