On May 2023, HODL suffered a other — the first of 188 documented other incidents in our archive where the loss figure was not publicly disclosed but the exploit pattern is documented below.
Attack Mechanics: How the HODL Other Played Out
Exploit Class Applied to HODL
The HODL incident on May 9, 2023 is classified as a Other. A specific exploit class outside the most common buckets. In the full archive, HODL is 1 of 188 documented other incidents.
HODL in Context
The HODL incident joins a class whose largest loss to date is MIMSpell (2024) at $65M.
Prior Other Before HODL
The nearest other incident before HODL was DEI, 4 days earlier on May 5, 2023 ($5.4M lost). The same exploit class surfaced again within the other attack surface.
HODL Vulnerability Signature
The primary source categorises the HODL exploit specifically as “Reflection token”. This narrower label is entity-specific: it reflects how the HODL contract failed, rather than the broad other pattern alone.
Impact & Recovery for HODL
HODL Loss Figure
The loss figure for HODL 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 188 other incidents in our archive is $2.03M.
Timeline Since the HODL Incident
The HODL exploit occurred 2.9 years ago (1,071 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for HODL
Public post-mortem / on-chain analysis for the HODL incident: view source.
FAQ
How much did HODL lose?
The HODL 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 HODL hack happen?
The HODL exploit was recorded on May 9, 2023 — 1,071 days ago.
What type of exploit hit HODL?
The HODL incident is classified as a Other. A specific exploit class outside the most common buckets.
How common is the Other pattern seen at HODL?
Our archive contains 188 documented other incidents. The HODL incident is one of them.
How does HODL compare to the largest Other attack?
The largest other incident in our archive is MIMSpell (2024) at $65M. The HODL loss was not publicly disclosed.
What general conclusion does the study draw about the role of cryptocurrency holdings?
Cryptocurrency holdings can have positive or negative impacts on sustainable performance, influenced by the company's financial health and external financial conditions.
Which cryptocurrencies were analyzed in the study?
Bitcoin, Ripple, Litecoin, Monero, Dash, MaidSafeCoin, and Dogecoin were analyzed.