shield Other · $7M loss

Inside the HundredFinance Unclassified Exploit — $7M gone on April 15, 2023

On April 2023, HundredFinance was exploited in a other, resulting in approximately $7M in losses. That makes the HundredFinance exploit the 37th largest DeFi incident out of 690 documented in our archive.

Attack Mechanics: How the HundredFinance Other Played Out

Exploit Class Applied to HundredFinance

The HundredFinance incident on April 15, 2023 is classified as a Other. A specific exploit class outside the most common buckets. In the full archive, HundredFinance is 1 of 188 documented other incidents.

HundredFinance in Context

At $7M, the HundredFinance exploit is a significant ($1M–$10M) event compared to the largest same-class incident in our archive — MIMSpell (2024) at $65M.

Prior Other Before HundredFinance

The nearest other incident before HundredFinance was MetaPoint, 3 days earlier on April 12, 2023. The same exploit class surfaced again within the other attack surface.

HundredFinance Vulnerability Signature

The primary source categorises the HundredFinance exploit specifically as “Donate Inflation ExchangeRate && Rounding Error”. This narrower label is entity-specific: it reflects how the HundredFinance contract failed, rather than the broad other pattern alone.

Impact & Recovery for HundredFinance

HundredFinance Loss Figure

The HundredFinance exploit caused $7,000,000 in losses — a significant ($1M–$10M) incident and the 11th largest of 214 documented in 2023. This single incident represents 1.1% of all tracked losses that year.

Where HundredFinance Sits Among Other Attacks

Ranked by loss size, HundredFinance is the 6th largest of 188 other incidents documented. That puts the HundredFinance loss above the class average of $2.03M.

Timeline Since the HundredFinance Incident

The HundredFinance exploit occurred 3 years ago (1,095 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.

Primary Reference for HundredFinance

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

FAQ

How much did HundredFinance lose?

The HundredFinance exploit in April 2023 resulted in $7,000,000 in losses — the 11th largest of 214 DeFi incidents that year.

When did the HundredFinance hack happen?

The HundredFinance exploit was recorded on April 15, 2023 — 1,095 days ago.

What type of exploit hit HundredFinance?

The HundredFinance incident is classified as a Other. A specific exploit class outside the most common buckets.

How common is the Other pattern seen at HundredFinance?

Our archive contains 188 documented other incidents. The HundredFinance incident is one of them.

How does HundredFinance compare to the largest Other attack?

The largest other incident in our archive is MIMSpell (2024) at $65M. The HundredFinance loss is $7M.

What method is used to assess the impact of COVID-19 on stock markets?

The event study method is used.

What are the key benefits of the proposed algorithm according to the study?

Enhanced accuracy in trading signals and reduced false signals.