Cardano network recovers after malformed transaction triggers chain partition

The Cardano blockchain experienced a rare chain partition on November 20 when a crafted, malformed delegation transaction exploited a deserialization bug in a cryptographic library, splitting the network into two chains. Cardano engineers swiftly responded by issuing hotfixes and upgrading nodes to version 10.5.3, which successfully converged the network back to a single chain. No user funds were compromised during the incident. While initial reports suggested a possible cyberattack leading to an FBI investigation, an X user named "Homer J" later admitted to triggering the transaction as a careless, unintentional experiment. Cardano founder Charles Hoskinson noted the individual is now attempting to retract their admission following the FBI's involvement.

(Source：Crypto Briefing)