On December 2024, JHY was exploited in a business logic flaw on BNB Chain, resulting in approximately $11K in losses. That makes the JHY exploit the 381st largest DeFi incident out of 690 documented in our archive.
Attack Mechanics: How the JHY Business Logic Flaw Played Out
Exploit Class Applied to JHY
The JHY incident on December 14, 2024 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, JHY is 1 of 144 documented business logic flaw incidents.
JHY in Context
At $11K, the JHY exploit is a minor (<$1M) event compared to the largest same-class incident in our archive — – EulerFinance (2023) at $200M.
Prior Business Logic Flaw Before JHY
The nearest business logic flaw incident before JHY was LABUBU Token, 4 days earlier on December 10, 2024. The same exploit class surfaced again within the business logic flaw attack surface.
JHY Vulnerability Signature
The primary source categorises the JHY exploit specifically as “Logic Flaw”. This narrower label is entity-specific: it reflects how the JHY contract failed, rather than the broad business logic flaw pattern alone.
Target Chain: BNB Chain
The vulnerable JHY contract was deployed on BNB Chain — one of 23 documented incidents on BNB Chain. This determines the block cadence, mempool, and forensic tooling available to investigators.
Impact & Recovery for JHY
JHY Loss Figure
The JHY exploit caused $11,000 in losses — a minor (<$1M) incident and the 112th largest of 188 documented in 2024.
Where JHY Sits Among Business Logic Flaw Attacks
Ranked by loss size, JHY is the 86th largest of 144 business logic flaw incidents documented. That puts the JHY loss below the class average of $6.08M.
Timeline Since the JHY Incident
The JHY exploit occurred 1.3 years ago (486 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for JHY
Public post-mortem / on-chain analysis for the JHY incident: view source.
FAQ
How much did JHY lose?
The JHY exploit in December 2024 resulted in $11,000 in losses — the 112th largest of 188 DeFi incidents that year.
When did the JHY hack happen?
The JHY exploit was recorded on December 14, 2024 — 486 days ago.
What type of exploit hit JHY?
The JHY 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.
Which blockchain was JHY deployed on?
The JHY contract was deployed on BNB Chain, one of 23 documented incidents on that chain.
How does JHY compare to the largest Business Logic Flaw attack?
The largest business logic flaw incident in our archive is – EulerFinance (2023) at $200M. The JHY loss is $11K.
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