Kraken suspende depósitos de Monero após Qubic controlar 51% do hashrate - Privacidade em risco?

O mercado de criptomoedas enfrenta mais um teste de resistência: a Kraken, uma das maiores exchanges do mundo, acaba de bloquear depósitos de Monero (XMR). O motivo? Qubic, uma entidade obscura, assumiu o controle de 51% do hashrate da rede - um golpe direto contra a descentralização.
Privacidade sob ataque
Monero, a criptomoeda preferida de quem valoriza anonimato, sempre foi um espinho no pé de reguladores. Agora, com Qubic comandando a maioria do poder de mineração, até os exchanges estão recuando. A Kraken não foi a primeira - e dificilmente será a última.
O jogo de poder continua
Enquanto isso, os grandes players do mercado fingem preocupação com 'segurança do usuário'. Conveniente, não? Principalmente quando moedas privativas desafiam o controle centralizado - e os lucros das instituições financeiras tradicionais. A ironia? Bancos cometem violações de dados diariamente, mas são as criptomoedas que precisam de 'supervisão'.
Ficou claro hoje: na guerra pela privacidade financeira, as trincheiras estão sendo cavadas. De que lado você está?
Kraken halts Monero deposits amid rising network threats
The suspicious activity was attributed to Qubic, a layer-1 blockchain and AI-mining pool. Earlier this week, Qubic said it achieved majority control in Monero hashrate and reorganized six blocks on the blockchain. This prompted denials of the attack from the Monero community.
Monero, the 29th largest cryptocurrency by market capitalization according to CoinMarketCap, is a leading privacy-focused protocol. The ongoing 51% attack on its network has rattled the community, sparking a flurry of reactions.
“After a month-long, high-stakes technical confrontation, Qubic reached 51% of Monero’s hashrate dominance, successfully reorganizing the blockchain,” spokespeople for Qubic wrote on Tuesday.
The mining pool was initially rebuffed in its attempt at a takeover, falling to the protocol’s seventh-largest miner. It was hit with an alleged denial of service attack on August 4. A distributed denial-of-service (DDoS) attack overwhelms a computer, network, or server with excessive fake traffic, clogging the system and blocking legitimate requests from being processed.
According to Sergey Ivancheglo, who claimed responsibility for the 51% attack, the DDoS assault slashed Qubic’s hashrate from 2.6 gigahashes per second (GH/s) to just 0.8 GH/s. The Qubic pool eventually regained its hashing strength, seizing majority control of the Monero network’s computing power.
“This event marks a pivotal moment in the crypto industry,” Qubic spokespeople continued, while highlighting the takeover of a $6 billion privacy protocol by a $300 million AI protocol.
Monero, which trades as XMR, is currently the third-worst performer among the top 100 cryptocurrencies by market cap, and it’s down almost 25% in the last month.
Economic incentives replace traditional malicious attacks in mining wars
The 51% attack on Monero would be especially critical in the eyes of money launderers searching for untraceable transactions and iron-clad privacy features -innate Monero virtues.
The network’s RandomX algorithm was explicitly created to deter ASIC mining and promote CPU and GPU mining in the game of decentralization.
But Qubic introduced a unique “useful proof-of-work,” or uPoW, module, which it has also been using to incentivize the Monero CPU mines to be redeployed in support of its token economy. However, it plans to convert mined XMR into USDT stablecoins in order to purchase and burn QUBIC tokens using a deflationary model on its native coin.
Instead of establishing a traditional attack for profit or disruption, the project has formed economic incentives that push miners away from distributed pools toward their centralized operation. This new attack category doesn’t rely on malicious intent but superior economic incentives.
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