Defibox
Hack or exploit on Sep 17, 2021 · Compatibility Issue
What happened
Defibox discovered an abnormal exchange situation of the EOS-EMOON trading pair at 22:00 on September 16th. After an emergency investigation, the swap contract was suspended at 0:00 on September 17th, and it was reopened on the morning of September 17th after auditing and multiple signings were completed. Swap contract. This exchange abnormality is caused by the incompatibility between the Defibox Swap contract and the EMOON contract. Before the event, the number of pots was 482636464535179.88 EMOON/4866.1494 EOS. When the contract was suspended, the EMOON pot was 5790970803030.11 EMOON/3.4553EOS, resulting in about 4863 EOS. loss. At present, the Defibox team has eliminated this type of risk caused by other burning tokens, and has upgraded the Swap contract to further improve the security of the contract. The Defibox Foundation will activate the risk reserve and pay 4863 EOS to the EMOON community.
Details
- Date
- Sep 17, 2021
- Kind
- Hack or exploit
- Method
- Compatibility Issue
- How in
- Smart contract bug
- Target
- not stated
- Chains
- EOS
Reported by
SwanBluechip, "Defibox hack, Sep 17, 2021: $26K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht25efde5f69/ (data as of 2026-10-31).