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Security Incident · ETH Ecosystem

Definer Oracle Attack

·Historical incident record

Incident Overview

On December 13, the DeFi platform Definer oracle was attacked. This incident was caused by the problem of Definer’s implementation of the oracle in OEC. It used the token balance of a single liquidity pool at a point in time as the price source, which led to the accident. The implementation of Ethereum used ChainLink’s The oracle does not have this problem.

Sources & References

Original incident referencehttps://mp.weixin.qq.com/s/YokbbrGD-G_cbMKoMWyJtw (opens in a new tab)

This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.

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