TechFlow news — The Cosmos-based blockchain Juno went offline on Tuesday due to a cyberattack. According to messages shared via the project's official Twitter account, the network remained offline at the time of publication, though no user funds were affected. The Juno core development team stated they are working on a fix.
An anonymous Juno core developer said the network crash originated from a malicious smart contract disguised as a simple "hello world" program. Over the course of three days, suspicious actors sent more than 400 transactions to the smart contract—an apparent trial-and-error process that ultimately identified a specific transaction combination capable of crashing the network. The developer noted that the attackers exploited a vulnerability in the blockchain, which Juno plans to patch within hours of the attack. This vulnerability has been publicly disclosed, as it affects all blockchains using the CosmWasm smart contract platform.
Earlier reports indicated that Juno stopped producing blocks at height 2578108.
Risk Disclosure: This website's content is not investment advice and offers no trading guidance or related services. Per regulations from the PBOC and other authorities, users must be aware of virtual currency risks. Contact us / [email protected] ICP License: 琼ICP备2022009338号
