On May 2024, EXcommunity 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 EXcommunity Business Logic Flaw Played Out
Exploit Class Applied to EXcommunity
The EXcommunity incident on May 28, 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, EXcommunity is 1 of 144 documented business logic flaw incidents.
EXcommunity in Context
The EXcommunity incident joins a class whose largest loss to date is – EulerFinance (2023) at $200M.
Prior Business Logic Flaw Before EXcommunity
The nearest business logic flaw incident before EXcommunity was NORMIE, 2 days earlier on May 26, 2024 ($490K lost). The same exploit class surfaced again within the business logic flaw attack surface.
Impact & Recovery for EXcommunity
EXcommunity Loss Figure
The loss figure for EXcommunity 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 EXcommunity Incident
The EXcommunity exploit occurred 1.9 years ago (686 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for EXcommunity
Public post-mortem / on-chain analysis for the EXcommunity incident: view source.
FAQ
How much did EXcommunity lose?
The EXcommunity 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 EXcommunity hack happen?
The EXcommunity exploit was recorded on May 28, 2024 — 686 days ago.
What type of exploit hit EXcommunity?
The EXcommunity 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 EXcommunity?
Our archive contains 144 documented business logic flaw incidents. The EXcommunity incident is one of them.
How does EXcommunity compare to the largest Business Logic Flaw attack?
The largest business logic flaw incident in our archive is – EulerFinance (2023) at $200M. The EXcommunity loss was not publicly disclosed.
How does the paper address the long-term security concerns associated with blockchain signatures?
By incorporating the post-quantum signature scheme Dilithium, the paper addresses long-term security concerns against quantum computing threats.
How is the operational integrity of IIoT devices ensured according to the study?
By continuously monitoring their provenance data and operational parameters against predefined constraints to detect any anomalies.