On July 2021, Chainswap suffered a business logic flaw — the first of 144 documented business logic flaw incidents in our archive where the loss figure was not publicly disclosed but the exploit pattern is documented below.
Attack Mechanics: How the Chainswap Business Logic Flaw Played Out
Exploit Class Applied to Chainswap
The Chainswap incident on July 2, 2021 is classified as a Business Logic Flaw. A business-logic bug in the contract — such as an incorrect formula or missing state update — lets the attacker withdraw more than their share. In the full archive, Chainswap is 1 of 144 documented business logic flaw incidents.
Chainswap in Context
The Chainswap incident joins a class whose largest loss to date is – EulerFinance (2023) at $200M.
Prior Business Logic Flaw Before Chainswap
The nearest business logic flaw incident before Chainswap was bEarn, 47 days earlier on May 16, 2021 ($11M lost). The same exploit class surfaced again within the business logic flaw attack surface.
Chainswap Vulnerability Signature
The primary source categorises the Chainswap exploit specifically as “Bridge, logic flaw”. This narrower label is entity-specific: it reflects how the Chainswap contract failed, rather than the broad business logic flaw pattern alone.
Impact & Recovery for Chainswap
Chainswap Loss Figure
The loss figure for Chainswap is not publicly disclosed. The primary source reports the exploit in non-USD terms, so no USD estimate is published here. For reference, the average loss across 144 business logic flaw incidents in our archive is $6.08M.
Timeline Since the Chainswap Incident
The Chainswap exploit occurred 4.8 years ago (1,747 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for Chainswap
Public post-mortem / on-chain analysis for the Chainswap incident: view source.
FAQ
How much did Chainswap lose?
The Chainswap loss figure is not publicly disclosed. The primary source reports the exploit in non-USD token terms, so no USD estimate is published here.
When did the Chainswap hack happen?
The Chainswap exploit was recorded on July 2, 2021 — 1,747 days ago.
What type of exploit hit Chainswap?
The Chainswap incident is classified as a Business Logic Flaw. A business-logic bug in the contract — such as an incorrect formula or missing state update — lets the attacker withdraw more than their share.
How common is the Business Logic Flaw pattern seen at Chainswap?
Our archive contains 144 documented business logic flaw incidents. The Chainswap incident is one of them.
How does Chainswap compare to the largest Business Logic Flaw attack?
The largest business logic flaw incident in our archive is – EulerFinance (2023) at $200M. The Chainswap loss was not publicly disclosed.
How does the system ensure real-time tracking of health parameters?
Through continuous data collection from IoT devices and wearables.
Which cryptocurrencies are analyzed in the document?
Bitcoin, Ether, and XRP are the cryptocurrencies analyzed.