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Security Incident · ETH Ecosystem

Echo Protocol Private Key Leak: $821.70K Reported Loss

·Historical incident record

Echo Protocol’s eBTC on Monad was compromised due to an admin private key leak.

Reported loss
$ 821,700
Attack category
Private Key Leakage

Incident Overview

The attacker granted themselves minting rights, minted 1,000 unbacked eBTC (~$76.7M nominal value), deposited 45 eBTC (~$3.45M) as collateral into Curvance to borrow ~11.29 WBTC (~$867K), bridged it to Ethereum, swapped for ETH, and sent ~384 ETH (~$821K) to Tornado Cash. The remaining 955 eBTC stays under attacker control, posing ongoing depegging risk.

Sources & References

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.