Cover Protocol
Summary
Cover Protocol was a decentralized insurance marketplace on Ethereum, launched in November 2020 after a troubled rebrand from the failed SAFE token project. On December 28, 2020, a critical smart contract vulnerability in its Blacksmith farming contract allowed an attacker to mint approximately 40 quintillion COVER tokens and extract over $4 million in assets, crashing the token price by more than 97%. After a failed merger with Yearn Finance and the abrupt departure of core developers, the protocol permanently shut down on September 5, 2021, distributing remaining treasury funds to token holders.
Connected Entities
1 entitiesTimeline(10 events)
2020-09-01
SAFE token launches; immediate controversy erupts over founder Alan's handling of liquidity mining deployment, causing SAFE to crash over 90% from ~$4,000 to under $200.
2020-09-26
SAFE-to-SAFE2 token migration begins (1:1 conversion). Co-founder Azeem Ahmed departs the project.
2020-10-18
Podcast founder Jason Choi publicly labels the SAFE/COVER token structure a 'stealthy rug,' citing 5.8x dilution of early supporters and reallocation of 70% of new supply to a new yield farm.
2020-11-20
SAFE2-to-COVER migration begins. Cover Protocol officially launches on Ethereum mainnet.
2020-11-28
Cover Protocol announces merger with Yearn Finance; Cover to serve as coverage backstop for the Yearn product suite.
2020-12-28
Infinite mint exploit on Blacksmith.sol farming contract. Attacker mints approximately 40 quintillion COVER tokens and extracts ~$4.4 million (1,400 ETH, 1M DAI, 90 WBTC, 3K LINK). COVER token crashes 97%. Binance halts trading. Grap.Finance later claims white hat responsibility and returns extracted funds.
2021-01-01
Cover Protocol team distributes new COVER tokens to holders affected by the December 2020 exploit.
2021-03-05
Yearn Finance and Cover Protocol announce termination of merger. COVER drops ~28% immediately. DeFi Ted states he received approximately four hours' notice before the public announcement.
2021-09-05
Cover Protocol and Ruler Protocol permanently shut down after core development team abruptly abandons both projects without stated reason. DeFi Ted advises users to withdraw all funds immediately. Treasury distributed to token holders at block 13162680 snapshot.
2021-09-05
Binance announces delisting of COVER token following shutdown announcement.
Decision Log
- hash: eWHXkUV8foBUwxCrixKyHWdNvogsvJBR77WDsBRmC2K
This investigation is cryptographically anchored to the Solana blockchain and source URLs are archived via the Internet Archive.
model: claude-sonnet-4-6
generated: 5/4/2026, 2:54:59 AM
last updated: 5/27/2026, 6:53:44 PM
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