Monero, the privacy-centric cryptocurrency, has been compromised by a 51% attack executed by a group called Qubic. This attack, which took place on August 12, 2025, has allowed the group to gain control over the network, raising alarms about the security and decentralization of Monero. A 51% attack enables the controlling entity to manipulate transactions and potentially double-spend coins, highlighting vulnerabilities in blockchain networks. The incident has sparked discussions within the cryptocurrency community regarding the need for improved security measures to protect against such attacks. Monero's reputation as a secure and private cryptocurrency is now under scrutiny, as stakeholders consider the implications of this breach.