Cardano Grapples With Fallout Days After First-Ever Chain Split

A rare blockchain split leaves Cardano community and investors on edge.

Hacker trying to break into Cardano space.
Created by Kornelija Poderskytė from DailyCoin

Cardano (ADA) is still dealing with the aftermath of a rare network disruption, three days after the blockchain suffered its first-ever chain split. 

The incident, which unfolded on Friday, briefly pushed the network onto two separate ledgers after a malformed transaction exploited a flaw in Cardano’s node software, according to the Intersect report.

The issue started when a so-called “toxic” transaction entered the network. According to Intersec, newer nodes running version 10.5.2 and above processed the transaction as valid, while older versions (10.3.1 and earlier) flagged it as invalid because of a weakness in a core cryptographic library. That version mismatch ultimately pushed the blockchain into a split.

Investigators have since traced the corrupted transaction to a wallet linked to a former participant in Cardano’s Incentivized Testnet.

The individual behind the malformed transaction has been identified as a Cardano staking-pool operator who goes by “Homer J (AAA)” on X and is associated with the “Fake Fred” Discord group. 

He said it was part of a technical experiment involving AI-generated code and insisted he did not intend to disrupt the network.

Cardano founder Charles Hoskinson rejected that explanation. He argued the act was intentional and aimed at damaging the reputation of Input Output Global (IOG). 

Hoskinson said the case has been handed over to the FBI, which he claims is now looking into both the transaction and its source.

Although no funds were lost, confidence within the Cardano community took a hit. Some critics saw it as a decentralization failure, questioning how a single bad transaction could break consensus.

Cardano’s (ADA) price reacted sharply, sliding nearly 11% to around $0.39 on Friday. After holding near that level for two days, the token bounced back on Monday, trading about 7.7% higher at roughly $0.41. Even with the rebound, ADA remains near its lowest levels since November 2024.

Why This Matters

The episode underscores the risks of version fragmentation in decentralized networks and how a single bad actor, intentional or not, can trigger far-reaching disruption.

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People Also Ask:

What is a chain split?

A chain split occurs when a blockchain briefly divides into two different versions of its ledger. This can happen when nodes disagree on which transactions are valid, causing each set of nodes to follow a different chain.

Why did Cardano’s chain split happen?

The split was triggered by a faulty, or “toxic,” transaction that exposed a bug in Cardano’s node software. Some nodes accepted the transaction, while others rejected it—causing the network to diverge into two chains.

Was the Cardano chain split an attack?

The person who submitted the transaction said it was part of a technical experiment using AI-generated code. Cardano founder Charles Hoskinson disagreed, calling it a deliberate attack on the network. The matter has been referred to the FBI, which is reviewing the transaction and its origin.

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Author
Simona Ram

Simona Ram is the senior journalist at DailyCoin, focusing on in-depth investigations of the cryptocurrency sector. Simona has minor holdings in Bitcoin.

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