BearnFi
Last changed 2026-10-10 · Score recalculated — Rescored under Scoring v2, the published formula (avoid.net/scoring): 12 → 50. Problems weighed by who is responsible: concerns that are not fraud −9.6, incidents the subject suffered −3.2, problems around the subject, caused by others −1.6; legitimacy credit long-running +4; no longer operating, so capped at 50. Version history →
Why this score
| Every page starts at | 65 |
| Concerns that are not fraud | -9.6 |
| Incidents it suffered (e.g. hacks) | -3.2 |
| Problems around it, caused by others | -1.6 |
| Long-running | +4 |
| Sum | 55 |
- No longer operating, so capped at 50.
Score: 50/100 (kept between 0 and 100)
How scoring works →Summary
bEarn.fi (BearnFi) is a Binance Smart Chain-based cross-chain yield farming and algorithmic stablecoin protocol that launched in late 2020. On May 16, 2021, an attacker exploited a smart contract denomination mismatch to drain approximately $10.85 million in BUSD from the protocol's bVaults via a flash loan attack. The project subsequently became inactive, with its native BFI token recording no price data after mid-2023 and a market capitalization of effectively zero. The entity has been flagged by ZachXBT.
Connected Entities
11 entities · 60 linked investigations- Uranium Finance→mentioned with→ZachXBT(70%)
- Cream Finance→mentioned with→ZachXBT(70%)
- Cream Finance→mentioned with→Ethereum(70%)
- Uranium Finance→mentioned with→Ethereum(75%)
- Cream Finance→mentioned with→Binance(70%)
- Uranium Finance→mentioned with→Binance(70%)
- Spartan Protocol→mentioned with→Binance(70%)
- Yearn Finance→mentioned with→Ethereum(70%)
- BearnFi→mentioned with→Spartan Protocol(85%)
- BearnFi→mentioned with→PancakeBunny(60%)
- + 22 more
Timeline(8 events)
November 2020
bEarn.fi protocol launches on Binance Smart Chain, offering cross-chain yield farming, algorithmic stablecoin, and related DeFi products.
2021
bEarn.fi January review published; CertiK audit of the bDollar smart contract reported as in progress but not yet completed.
16 May 2021
Flash loan exploit occurs at 10:36:20 AM UTC. Attacker borrows 7.8M BUSD from Cream Finance and executes 26-30 deposit/withdrawal cycles against the bVaults BUSD Alpaca strategy, draining approximately $10.85 million in BUSD.
16 May 2021
bEarn team freezes all bVaults, contacts Binance to flag attacker address 0x47f341d896b08daacb344d9021f955247e50d089, and engages CertiK and PeckShield.
17 May 2021
bEarn team publishes post-mortem and announces 105% compensation plan for affected users: 87.5% BUSD + 7.5% BDOv2 immediately, 10% BDEX vested over 80 weeks.
17 May 2021
PeckShield publishes technical analysis confirming root cause as inconsistent asset denomination (BUSD vs ibBUSD) between BvaultsBank and BvaultsStrategy contracts.
17 May 2021
Yearn Finance developer Banteg criticizes bEarn's immediate compensation promise, warning it creates a distorted perception of risk for DeFi users.
10 August 2023
Last recorded price data for BFI token per market data aggregators. Protocol activity effectively ceases with market capitalization falling to zero.
Decision Log
- slot 455362381 · hash CcxMnKdwHbps8qti6adoGELS6DPjWQuipjh1w8y1CcGx
- slot 421258814 · hash 8wQsopnGnzdfKkfa2P1PvU34YALR2EADxKRZKXidJTDZ
This investigation is cryptographically anchored to the Solana blockchain (2 decisions). 10 of 17 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-6
generated: 5/4/2026, 2:54:57 AM
last updated: 10/10/2026, 6:42:39 PM
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