ETH DApp : 11 hack event(s)

• 2020-04-25

  Hacked target: Hegic

  Description of the event: Hegic: There are 152.2 ETH (about 28,537 USD) permanently locked in the contract pool of unexercised put / call options. Out of the 19 contracts, 16 are put options (DAI is locked) and 3 are call options (ETH is locked). Hegic said it will process a 100% refund for all involved users.

  Amount of loss: $28,537 Attack method: Unknown

• 2020-04-19

  Hacked target: Lendf.Me

  Description of the event: DeFi lending protocol Lendf.Me was hacked.

  Amount of loss: $24,696,616 Attack method: ERC777 Reentrancy Rick

• 2020-04-18

  Hacked target: Uniswap

  Description of the event: Uniswap was hacked and lost 1278 ETH.

  Amount of loss: $220,000 Attack method: ERC777 Reentrancy Rick

• 2020-02-18

  Hacked target: bZx

  Description of the event: bZx was attacked again with an estimated loss of $645,000 of ETH

  Amount of loss: $645,000 Attack method: The defect of risk control in economic model

• 2020-02-15

  Hacked target: bZx

  Description of the event: DeFi lending protocol bZx exploited, may lose up to $350,000.

  Amount of loss: $350,000 Attack method: The defect of risk control in economic model

• 2018-10-09

  Hacked target: SpankChain

  Description of the event: The attacker created a malicious contract masquerading as an ERC20 token, and the "transfer" function re-invokes the payment channel contract repeatedly, each time exhausting some ETH.

  Amount of loss: 165.38 ETH Attack method: reentrancy-attack-on-smart-contract

• 2018-08-01

  Hacked target: Fomo 3D

  Description of the event: Ethereum Fomo 3D was hacked and hacker used special attack techniques to take the bonus.

  Amount of loss: 10,469.66 ETH Attack method: Transaction Congestion Attack

• 2018-07-31

  Hacked target: Fomo 3D

  Description of the event: Ethereum Fomo 3D was hacked, Fomo 3D website 24-hour access reduced 21.95 percent, 24-hour flow decreased 38.32%

  Amount of loss: - Attack method: DDoS

• 2018-07-10

  Hacked target: Bancor

  Description of the event: The Bancor platform theft was related to the BancorConverter contract, and the attacker (hacker/mole) is very likely to get the private key of the 0x009bb5e9fcf28e5e601b7d0e9e821da6365d0a9c.

  Amount of loss: 24,984 ETH，3,236,967 BNT，229,356,645 NPXS， Attack method: Suspected private key stolen

• 2017-07-20

  Hacked target: Parity

  Description of the event: As reported by the startup, the issue is the result of a bug in a specific multi-signature contract known as wallet.sol., the attacker can take over the wallet immediately and absorb all the funds

  Amount of loss: ~30,000,000 USD Attack method: Unauthorized operation

• 2016-06-17

  Hacked target: The DAO

  Description of the event: The DAO smart contract running on the Ethereum suffered a reentrancy-attack-on-smart-contract.

  Amount of loss: ~60,000,000 USD Attack method: reentrancy-attack-on-smart-contract