On May 2021, Spartan was exploited in a business logic flaw, resulting in approximately $30.5M in losses. That makes the Spartan exploit the 18th largest DeFi incident out of 690 documented in our archive.
Attack Mechanics: How the Spartan Business Logic Flaw Played Out
Exploit Class Applied to Spartan
The Spartan incident on May 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, Spartan is 1 of 144 documented business logic flaw incidents.
Spartan in Context
At $30.5M, the Spartan exploit is a major ($10M–$100M) event compared to the largest same-class incident in our archive — – EulerFinance (2023) at $200M.
Spartan Vulnerability Signature
The primary source categorises the Spartan exploit specifically as “Logic Flaw”. This narrower label is entity-specific: it reflects how the Spartan contract failed, rather than the broad business logic flaw pattern alone.
Impact & Recovery for Spartan
Spartan Loss Figure
The Spartan exploit caused $30,500,000 in losses — a major ($10M–$100M) incident and the 2nd largest of 37 documented in 2021. This single incident represents 14.5% of all tracked losses that year.
Where Spartan Sits Among Business Logic Flaw Attacks
Ranked by loss size, Spartan is the 5th largest of 144 business logic flaw incidents documented. That puts the Spartan loss above the class average of $6.08M.
Timeline Since the Spartan Incident
The Spartan exploit occurred 5 years ago (1,808 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for Spartan
Public post-mortem / on-chain analysis for the Spartan incident: view source.
FAQ
How much did Spartan lose?
The Spartan exploit in May 2021 resulted in $30,500,000 in losses — the 2nd largest of 37 DeFi incidents that year.
When did the Spartan hack happen?
The Spartan exploit was recorded on May 2, 2021 — 1,808 days ago.
What type of exploit hit Spartan?
The Spartan 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 Spartan?
Our archive contains 144 documented business logic flaw incidents. The Spartan incident is one of them.
How does Spartan compare to the largest Business Logic Flaw attack?
The largest business logic flaw incident in our archive is – EulerFinance (2023) at $200M. The Spartan loss is $30.5M.
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