cryptolinkbase.com

Cardano-no-no! The Cardano blockchain splits.

Category: Crypto General -> Security

Type: article

https://thedecentralised.beehiiv.com/p/cardano-no-no

On November 21, 2025, Cardano experienced a significant chain split caused by a malformed delegation transaction. This resulted in two parallel chains temporarily coexisting, raising concerns about network robustness and governance. The issue was traced back to a bug from 2022, which was exploited using AI-assisted code. The ecosystem responded quickly with urgent updates and merged the chains back into one, but the incident sparked criticism and highlighted vulnerabilities in the protocol.