Jinse Finance reported that Ethereum Layer 2 protocol Loopring posted on social media that Loopring smart wallets were attacked. A few hours ago, some Loopring smart wallets suffered security vulnerabilities. The attack specifically targeted wallets with only one Guardian, especially those using Loopring's official Guardian. The hacker initiated a recovery process, impersonating the wallet owner to reset ownership and withdraw assets. The attack successfully compromised the 2FA service of the Loopring protocol, enabling the hacker to impersonate the wallet owner and obtain recovery approval from the official guardian. The attacker then transferred the assets out of the affected wallet. We are actively working with Mist security experts to determine how our 2FA service was compromised. To protect our users, we have temporarily suspended Guardian-related and 2FA-related operations. After this move, the attack has stopped. The Loopring protocol is working with law enforcement and professional security teams to track down the attacker. We will continue to provide updates as the investigation progresses.