VERDICT —UNRATED
Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.
▰ METHOD
Undisclosed
Root cause
Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.
▰ PROOF OF CONCEPT
DEFIHACKLABS
src/test/2021-05/bEarn_exp.sol
view forked test on github ↗Reproducible Foundry test fork from SunWeb3Sec/DeFiHackLabs. Clone the repo, run forge test against the file path above, and replay the exploit against a mainnet fork at the historical block. Use for reproduction only — not for live targets.
Forensic narrative
bEarn Fi, a cross-chain auto yield farming protocol, was exploited earlier Sunday, resulting in a loss of almost $11 million, according to China-based blockchain analysis firm PeckShield. Reported loss: $11,000,000.
Primary source
https://www.coindesk.com/bearn-fi-loses-11m-in-latest-exploit-of-a-binance-smart-chain-defi-protocol ↗Sourced from
chainsec
Technical record
- chain
- multichain
- protocol
- bEarn Fi
- bug_class
- unknown
- date_occurred
- 2021-05-16
- loss_usd
- $11,000,000
- source_id
- cs:bearn-fi::2021-05-16
Related — same bug class