Cardano caused a fork due to a format error in a delegated transaction, and Intersect confirmed that there were no user fund losses.

ChainCatcher news, the Cardano Blockchain split into two chains due to a format error in a delegated transaction that triggered a software vulnerability. The transaction was validated on the new version Node but was rejected by the old version software, leading to a network fork. The Cardano ecosystem governance organization Intersect stated in the incident report that this “toxic” transaction exploited a vulnerability in the underlying software library, dividing the network into a “poisoned” chain containing the transaction and a “healthy” chain without it. Co-founder Charles Hoskinson initially claimed it was a “premeditated attack,” but later an X user, Homer J., publicly admitted responsibility, stating that he acted negligently while trying to replicate the “bad transaction” and relied on AI-generated instructions. The user indicated there was no malicious intent and no financial gain from it. Intersect confirmed that there were no user fund losses, and most retail Wallets were unaffected. The price of ADA Token dropped by over 6% due to this incident.