On April 2024, ChaingeFinance was exploited in a arbitrary call, resulting in approximately $560K in losses. That makes the ChaingeFinance exploit the 113th largest DeFi incident out of 690 documented in our archive.
Attack Mechanics: How the ChaingeFinance Arbitrary Call Played Out
Exploit Class Applied to ChaingeFinance
The ChaingeFinance incident on April 15, 2024 is classified as a Arbitrary Call. The contract executes an external call with attacker-controlled target or calldata, letting them impersonate the contract. In the full archive, ChaingeFinance is 1 of 21 documented arbitrary call incidents.
ChaingeFinance in Context
At $560K, the ChaingeFinance exploit is a minor (<$1M) event compared to the largest same-class incident in our archive — Seneca (2024) at $6M.
Prior Arbitrary Call Before ChaingeFinance
The nearest arbitrary call incident before ChaingeFinance was Seneca, 47 days earlier on February 28, 2024 ($6M lost). The same exploit class surfaced again within the arbitrary call attack surface.
ChaingeFinance Vulnerability Signature
The primary source categorises the ChaingeFinance exploit specifically as “Arbitrary External Call”. This narrower label is entity-specific: it reflects how the ChaingeFinance contract failed, rather than the broad arbitrary call pattern alone.
Impact & Recovery for ChaingeFinance
ChaingeFinance Loss Figure
The ChaingeFinance exploit caused $560,000 in losses — a minor (<$1M) incident and the 25th largest of 188 documented in 2024. This single incident represents 0.2% of all tracked losses that year.
Where ChaingeFinance Sits Among Arbitrary Call Attacks
Ranked by loss size, ChaingeFinance is the 6th largest of 21 arbitrary call incidents documented. That puts the ChaingeFinance loss below the class average of $783.5K.
Timeline Since the ChaingeFinance Incident
The ChaingeFinance exploit occurred 2 years ago (729 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for ChaingeFinance
Public post-mortem / on-chain analysis for the ChaingeFinance incident: view source.
FAQ
How much did ChaingeFinance lose?
The ChaingeFinance exploit in April 2024 resulted in $560,000 in losses — the 25th largest of 188 DeFi incidents that year.
When did the ChaingeFinance hack happen?
The ChaingeFinance exploit was recorded on April 15, 2024 — 729 days ago.
What type of exploit hit ChaingeFinance?
The ChaingeFinance incident is classified as a Arbitrary Call. The contract executes an external call with attacker-controlled target or calldata, letting them impersonate the contract.
How common is the Arbitrary Call pattern seen at ChaingeFinance?
Our archive contains 21 documented arbitrary call incidents. The ChaingeFinance incident is one of them.
How does ChaingeFinance compare to the largest Arbitrary Call attack?
The largest arbitrary call incident in our archive is Seneca (2024) at $6M. The ChaingeFinance loss is $560K.
What technology is introduced to enhance the security of the system?
TLS channel for secure connection to the blockchain network.
What significant findings does the paper report regarding the use of active learning in fraud detection?
Active learning techniques, especially when combining unsupervised and supervised policies, improve the model's performance in detecting fraudulent transactions.