shield Business Logic Flaw

HoppyFrogERC Exploit: Business Logic Flaw Incident Explained (2024)

On April 2024, HoppyFrogERC 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 HoppyFrogERC Business Logic Flaw Played Out

Exploit Class Applied to HoppyFrogERC

The HoppyFrogERC incident on April 2, 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, HoppyFrogERC is 1 of 144 documented business logic flaw incidents.

HoppyFrogERC in Context

The HoppyFrogERC incident joins a class whose largest loss to date is – EulerFinance (2023) at $200M.

Prior Business Logic Flaw Before HoppyFrogERC

The nearest business logic flaw incident before HoppyFrogERC was OpenLeverage, 1 day earlier on April 1, 2024 ($234K lost). The same exploit class surfaced again within the business logic flaw attack surface.

Impact & Recovery for HoppyFrogERC

HoppyFrogERC Loss Figure

The loss figure for HoppyFrogERC 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 HoppyFrogERC Incident

The HoppyFrogERC exploit occurred 2 years ago (742 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.

Primary Reference for HoppyFrogERC

Public post-mortem / on-chain analysis for the HoppyFrogERC incident: view source.

FAQ

How much did HoppyFrogERC lose?

The HoppyFrogERC 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 HoppyFrogERC hack happen?

The HoppyFrogERC exploit was recorded on April 2, 2024 — 742 days ago.

What type of exploit hit HoppyFrogERC?

The HoppyFrogERC 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 HoppyFrogERC?

Our archive contains 144 documented business logic flaw incidents. The HoppyFrogERC incident is one of them.

How does HoppyFrogERC compare to the largest Business Logic Flaw attack?

The largest business logic flaw incident in our archive is – EulerFinance (2023) at $200M. The HoppyFrogERC loss was not publicly disclosed.

How does the proposed protocol ensure the security of participants' assets?

Through the use of the pre-adaptor signature scheme and P2SH technology for secure script encoding.

Why is data normalization important in the preprocessing step for machine learning models?

To rescale numeric features into a 0 to 1 range, making models less sensitive to the scale of variables.