Badger DAO (BADGER) is a community-governed DeFi protocol on Ethereum focused on making Bitcoin productive in DeFi — allowing users to deposit tokenized BTC assets (wBTC, renBTC, and Curve Bitcoin LP tokens) into yield-generating Sett Vaults — that launched in December 2020 with the first retroactive fair-launch airdrop in DeFi (distributed to users of Bitcoin-adjacent protocols including wBTC, renBTC, and others), reached nearly $2 billion in TVL at peak in 2021, and suffered one of DeFi’s most damaging front-end supply-chain attacks in December 2021 in which malicious scripts injected via a compromised Cloudflare Worker API key stole approximately $120 million from 500+ user wallets before the team paused all contracts — a hack notable for targeting the interface rather than exploiting a smart contract vulnerability.
| Stat | Value |
|---|---|
| Ticker | BADGER |
| Price | $0.39 |
| Market Cap | $7.71M |
| 24h Change | -0.1% |
| Circulating Supply | 19.93M BADGER |
| Max Supply | 21.00M BADGER |
| All-Time High | $89.08 |
| Contract (Ethereum) | 0x3472...e53d |
| Contract (Fantom) | 0x753f...dfc9 |
| Contract (Xdai) | 0xdfc2...9d65 |
| Contract (Harmony Shard 0) | 0x06b1...0e0d |
| Contract (Energi) | 0x32e6...2f6f |
| Contract (Arbitrum One) | 0xbfa6...472e |
How It Works
- Sett Vaults — Badger’s core product: users deposit accepted BTC-pegged tokens (wBTC, renBTC, ibBTC, or Curve BTC liquidity pool tokens) into Sett Vaults (a term coined from “Badger’s Sett,” the burrow habitat). Vaults deploy the deposited assets into yield strategies such as Curve Finance BTC pools, which earn CRV and CVX rewards.
- Strategy automation — Like Yearn Finance, Sett Vaults automatically compound rewards. Harvested CRV and CVX tokens are sold periodically to buy more BTC assets, compounding the APY.
- ibBTC — Badger’s interest-bearing basket BTC token. Depositing BTC assets into the ibBTC vault mints ibBTC, an ERC-20 that accrues yield passively, usable as DeFi collateral.
- BADGER emissions — In Badger’s early days, users who deposited into Sett Vaults also received BADGER token emissions as additional yield. This bootstrapped liquidity during the DeFi boom of 2021.
- DIGG rebasing token — Alongside BADGER, the protocol issued DIGG — an elastic supply synthetic Bitcoin whose supply expands or contracts daily based on whether DIGG’s price is above or below BTC’s price. DIGG is unrelated to Bitcoin’s actual supply mechanics and functions as an independent rebasing experiment.
- DAO governance — BADGER token holders vote on protocol parameters, new Sett Vault strategies, fee rates, and treasury management via Badger DAO governance.
Tokenomics
| Parameter | Value |
|---|---|
| Ticker | BADGER |
| Governance | Badger DAO |
| Max Supply | 21,000,000 BADGER |
| Launch | December 3, 2020 (retroactive fair-launch airdrop) |
| Airdrop recipients | Users of wBTC, renBTC, Curve BTC pools, Uniswap, and other BTC DeFi protocols |
| Ethereum contract | 0x3472A5A71965499acd81997a54BBA8D852C6Ec53 |
| Peak TVL | ~$2 billion (early 2021) |
Use Cases
- Bitcoin DeFi yield — Earn APY on wBTC, renBTC, and BTC curve LP tokens via automated Sett Vault strategies.
- ibBTC — Interest-bearing BTC token usable across DeFi without actively managing a vault.
- Governance — BADGER holders vote on strategy approvals, Sett additions, fees, and DAO treasury.
History
- 2020-12-03 — Badger DAO launches with a retroactive airdrop of BADGER tokens to users who had previously interacted with Bitcoin DeFi protocols on Ethereum (wBTC holders, renBTC users, Curve BTC pool LPs, and others). No public sale; no pre-mine to founders without community allocation. This “fair launch” model was novel and widely praised.
- 2021 — Badger becomes one of the largest Bitcoin-in-DeFi protocols by total value locked. TVL reaches nearly $2 billion. The protocol launches ibBTC (interest-bearing BTC), a basket BTC token. BADGER and DIGG (Badger’s rebasing synthetic Bitcoin) trade at significant premiums. At peak, BADGER trades above $80.
- 2021-11 — Security research firm Immunefi helps Badger implement a bug bounty program. The protocol is considered one of the more established DeFi projects with a security focus.
- 2021-12-02 — Hackers inject malicious scripts into Badger’s web frontend via a compromised Cloudflare Worker API key. The malicious code intercepts MetaMask token approval transactions and substitutes the addresses — instead of approving the Badger contract, users unknowingly approve a malicious attacker address. The attack runs silently for several hours, targeting high-value wallets.
- 2021-12-02 — Compromised wallets begin losing funds. The attacker drains WBTC, CVX, and other tokens from user wallets that approved the malicious contract. Approximately 500 users are impacted. The total stolen reaches approximately $120 million.
- 2021-12-02 — Badger pauses all vault contracts and disables the frontend to stop further damage. Blockchain analytics firm PeckShield and others confirm the exploit vector. The FBI and Canadian cybercrime authorities are contacted.
- 2022 — Badger DAO votes to conduct partial reparations from the treasury using BADGER tokens. The DAO does not fully compensate all losses. The hack significantly reduces TVL and user confidence. Badger rebuilds with enhanced security measures (multi-step frontend key management, hardware security keys for Cloudflare access).
- 2023–2024 — Badger operates at a fraction of its 2021 TVL. The protocol continues but at reduced scale. Still one of the prominent Bitcoin-in-DeFi protocols but the sector is smaller than during DeFi Summer peaks.
Common Misconceptions
“Badger was hacked via a smart contract bug.”
The December 2021 attack was a supply-chain / front-end attack, not a smart contract exploit. The smart contracts themselves had no vulnerability. Hackers compromised Badger’s Cloudflare Worker (used to serve API calls on the frontend), allowing them to inject malicious approval data into MetaMask transaction prompts. Smart contract audits would not have prevented this type of attack.
“BADGER and DIGG are the same token.”
BADGER is the governance token. DIGG is a separate elastic supply token designed to track Bitcoin’s price via rebasing. They serve entirely different purposes. DIGG’s rebasing mechanism amplifies both gains and losses.
Social Media Sentiment
Badger DAO maintains an active community despite the 2021 hack. The fair-launch airdrop model is still cited as an example of equitable distribution. The hack is discussed frequently in DeFi security contexts as a prominent example of front-end attack vectors being as dangerous as smart contract vulnerabilities. Some users who lost funds remain critical of the partial (not full) DAO reparations. The broader “Bitcoin in DeFi” thesis has been partially supplanted by L2-native BTC DeFi (e.g., via ZetaChain or Lightning) and by institutions like BlackRock’s direct BTC products reducing retail DeFi demand for wrapped BTC yield.
Last updated: 2026-04