Security Incident - Monero (XMR) experienced a 51% attack in August, achieved with only 35.7% hashrate through block withholding tricks [1] - The market reaction to the attack on Monero was perceived as treating it like a minor bug [1] - Following the attack, Kraken suspended deposits, multiple exchanges halted withdrawals, and developers discussed abandoning RandomX [1] Market Impact - XMR price dropped 13.8% following the attack [1] - Ethereum Classic (ETC) dropped 30% and Bitcoin Gold (BTG) dropped 50% after their respective attacks [1] - XMR was trading at $260, seemingly unaffected by the security model failure [1]

Ethereum co-founder Vitalik Buterin warned that a blockchain’s core security property is that even a 51% attack cannot make an invalid block valid, meaning colluding validators can’t steal users’ assets. However, he noted this protection doesn’t extend off-chain—if 51% of validators collude in external trust scenarios, users have no recourse.https://t.co/qVVuqGsH9C ...

Blockchain Security - A blockchain's core security feature is its resistance to invalid block validation, even in a 51% attack scenario [1] - This inherent security is compromised when validators are entrusted with tasks beyond the blockchain's control, potentially leading to incorrect and unauditable outcomes if 51% of validators collude [1]

Cryptocurrency Vulnerabilities - Grok声称攻击Zcash (ZEC) 一小时的 51% 攻击成本为 8,675 美元 [1] - Grok声称攻击比特币 (Bitcoin) 的 51% 攻击成本仅为 200 万美元 [1] Market Context - 比特币 (Bitcoin) 是一种价值 2 万亿美元的资产 [1]

RT Coherent Xegesis (@CoherentXegesis)@WalkerAmerica @grok I ran the same by Grok, but with Dash @DashpayIt takes $238 million at a minimum. And it’s not even a guaranteed attack. BTW the cost massively scales as adoption goes up so it’s realistically impossible to pull a 51% attack.https://t.co/kGpjybH1KU ...

This number for Zcash is probably inaccurate (way too low), but with CrossLink will become orders of magnitude higher.Dash already has the "OG CrossLink" since 2019: ChainLocks. You'd probably need to spend hundreds of millions on masternodes just to compromise the staked element, and still would need to control ASICs and hashrate to execute an attack.Dash is engineered to be hyper secure, far outside of its weight class. 💪Walker⚡️ (@WalkerAmerica):According to @grok, the cost for a 1-hour 51% attack on Zca ...

RT Spade (@SpadesHQ_)I’ve held back my comments around $XMR until I received more info about the 51% attack. That being said, the fact that $Dash solved this problem almost a decade ago with Chainlocks just goes to show how far ahead some chains are in relation to technological advancements ...

Security Concerns - Monero is reportedly facing a 51% attack [1] - The alleged attack is from an AI protocol named Qubic [1] - Experts are skeptical about the success of the purported attack [1]

Monero faces chain reorganization fears after Qubic says it controls 51% of hashrate https://t.co/CKmup37dof ...

Crypto Privacy Concerns - Privacy in crypto is facing increasing challenges [1] - The privacy sector, along with stablecoins, is considered highly important [1] Monero Mining Manipulation - Qubic has achieved a 51% share of Monero's mining power [1] - This dominance enables Qubic to potentially manipulate the Monero cryptocurrency through a 51% attack [1] - Qubic intends to orphan blocks from other miners, effectively becoming the sole mining entity for Monero [1]