Verified blockchain security incidents with original evidence and historical event dates.
Description of the event: Sense Finance is a fixed-rate lending protocol in which fixed-income assets such as Idle can be traded, which was indirectly affected by the Euler attack.
Description of the event: The DeFi lending protocol Euler Finance was attacked, and the attackers made a profit of about 197 million US dollars. The attacker used flashloans to deposit funds and then leveraged them twice to trigger the liquidation logic, donating the funds to the reserve address and conducting a self-liquidation to collect any remaining assets. Two key factors contributed to the success of the attack: 1. Funds were donated to the reserved address without being subjected to a liquidity check. This created a mechanism that could directly trigger soft liquidation. 2. When the soft liquidation logic was triggered by high leverage, the yield value increased, enabling the liquidator to obtain most of the collateral funds from the liquidated user's account by transferring only a portion of the liabilities to themselves. Given that the value of the collateral funds exceeded the value of the liabilities (which were only partially transferred due to the soft liquidation), the liquidator was able to successfully pass their health factor check (checkLiquidity) and withdraw the obtained funds. On April 4th, Euler Labs tweeted that after a successful negotiation, the attacker has returned all the funds stolen from the agreement on March 13th, because the attacker has returned the funds, the $1 million reward campaign launched by the foundation No new information will be accepted.
Description of the event: The decentralized exchange Balancer disclosed on Twitter that in the Euler Finance attack, about $11.9 million was sent to Euler from the bbeUSD liquidity pool, accounting for 65% of the liquidity pool TVL, and bbeUSD was also deposited The other 4 liquidity pools: wstETH/bbeUSD, rETH/bbeUSD, TEMPLE/bbeUSD, DOLA/bbeUSD, all other Balancer liquidity pools are safe.
Description of the event: Angle Protocol, a decentralized stablecoin protocol, tweeted: "Angle Protocol was affected by the Euler exploit, which deposited 17.6 million USDC into Euler. The protocol has been suspended, the debt ceiling has been set to 0, and the Euler AMO has been closed .are monitoring the situation and will update as soon as they are received.” Angle Protocol stated that before the Euler hack, the total value locked (TVL) of the Angle Core module was about 36 million US dollars, and 17.2 million agEUR had passed through the core. Module casting. In addition, in the agreement are: about 11.6 million US dollars in deposits from standard liquidity providers, about 353,000 US dollars in deposits from hedging agents, and a surplus of about 5.58 million yuan.
Description of the event: Inverse Finance, a DeFi lending protocol, tweeted: “Euler attack impacted DOLA-bb-e-USD pool on Balancer. Despite quick action to mitigate 90% of the impact, DOLA Fed suffered up to 86% for this pool. million in losses, excluding rewards points. Will be working with Balancer to recover the remaining funds.”
Description of the event: SwissBorg is a crypto asset management platform that is regulated and licensed in Switzerland, France and Estonia. It has its own SwissBorg app and can earn money through this mobile wallet. SwissBorg stated that the ETH and USDT in the Earn strategy suffered partial losses, including 1617.23 ETH and about 1.69 million USDT, accounting for 2.27% and 29.52% of the subscription funds respectively. SwissBorg will bear all losses.
Description of the event: Opyn built the first decentralized option protocol, developed the perpetual option Opyn Squeeth, and built a variety of income strategies on Suqeeth. This time Opyn is affected by the Zen Bull strategy, which combines the Crab strategy and ETH leveraged long positions, and is suitable for low-volatility markets where ETH prices are on an upward trend. Since this strategy requires mortgage assets to buy ETH through leverage, it may be a mortgage loan in Euler, resulting in losses. Opyn has not announced the amount of the loss and how it will be dealt with.
Description of the event: The SUCKR project on the Aptos chain is suspected of being a rug pull. The hacker called the mint_SUCKR (admin privilege function) function to mint a large number of SUCKR tokens and exchange them for USDT. The price of SUCKR tokens plummeted by 9% 249h.
Description of the event: Hedera tweeted to disclose the details of the attack. The attacker attacked the smart contract service code of the Hedera main network and transferred the Hedera Token Service tokens held by some user accounts to their own accounts. The attackers targeted accounts used as liquidity pools on multiple DEXs migrated to use the Hedera Token Service using Uniswap V2-derived contract generations, including Pangolin Hedera, SaucerSwap, and HeliSwap. When attackers moved tokens obtained through the attack to a Hashport Network bridge, bridge operators detected the activity and acted quickly to disable it. To prevent attackers from stealing more tokens, Hedera shut down the mainnet proxy, which removes user access to the mainnet.
Description of the event: Tender.fi is suspected of being attacked by white hat hackers and lost $1.59 million. Hackers used Tender.fi’s misconfigured oracles to borrow $1.59 million worth of crypto assets with just $70 worth of GMX tokens as collateral. On March 8, on-chain data showed that the hackers who attacked the Arbitrum ecological lending protocol Tender.fi had returned their funds, and the Tender.fi team agreed to pay the hackers 62 ETH ($96,500) as a bounty.
Description of the event: When PeopleDAO’s community treasury multi-signature wallet on the digital asset management platform Safe (formerly Gnosis Safe) distributed monthly contributor rewards on March 6, 76 ETH (approximately $120,000) were stolen by hackers through social engineering attacks. This event has nothing to do with the PEOPLE token contract. PeopleDAO collects monthly contributor reward information through Google Form. The person in charge of accounting mistakenly shared a link with editing permissions in the Discord public channel. Payments to your own address and set them to be invisible. Due to the malicious concealment, the team leader did not find it during the review. After downloading the csv file with insertef data, it was submitted to Safe's CSV Airdrop tool for reward distribution. With the assistance of SlowMist and ZachXBT, the team found that the attacked funds had been deposited in two exchanges, HitBTC and Binance, and contacted the two exchanges.
Description of the event: Arbitrum ecological DEX ArbiSwap is suspected of Rug Pull. ArbiSwap deployers minted 1 trillion ARBI before Rug Pull, and then converted ARBI into USDC, which caused a sharp drop in ARBI in the USDC/ARBI transaction pair. In the next block, the robot passed USDC to ARBI then traded ETH for spatial arbitrage, making a profit of 68.47 ETH. ArbiSwap has transferred 84 ETH to the Ethereum mainnet and sent it to TornadoCash.
Description of the event: According to the official WeChat account of Ping An Xuhui, employees Zhang, Dong, and Liu from Company A decided in early March 2023 to insert a backdoor program into a certain cryptocurrency wallet software to obtain users' private keys. The three individuals illegally obtained over 27,000 mnemonic phrases and more than 10,000 private keys, successfully converting over 19,000 digital wallet addresses. In April 2024, the Xuhui District People's Court sentenced Liu, Zhang, and Dong to three years in prison for the crime of illegally obtaining data from a computer information system and fined each of them 30,000 RMB. It is worth noting that Company A is suspected to be the former Huobi company. In an exclusive report by WuShuo in 2023, it was revealed that due to the installation of trojans by former employees, some users' mnemonic phrases or private keys of iToken (formerly Huobi Wallet) were leaked. HTX responded that the trojan installation was the personal act of former Huobi employees before the acquisition, leading to the theft of others' mnemonic phrases and private keys.
Description of the event: Algorand ecological wallet MyAlgo issued a reminder on Twitter that the hack occurred more than a week ago, and no other actions have taken place since then. The attacked users all had large amounts of funds on their accounts and used mnemonic wallets with keys stored in the browser. ZachXBT, an on-chain data analyst, tweeted: “Due to the attack on MyAlgo, Algorand’s ecological wallet, from February 19th to 21st, more than $9.2 million in assets (19.5 million ALGOs, 3.5 million USDCs, etc.) may have been stolen on Algorand. ChangeNow shared that they were able to freeze $1.5 million.”
Description of the event: 80% of the funds in the liquidity pool of the DeFi project LaunchZone were suddenly drained, the price of LZ tokens fell by more than 80% from the previous value of around US$0.15 to US$0.026, and the stolen funds were about US$700,000.
Description of the event: The DeFi project DND Token (DungeonSwap Token) on BSC has been utilized. The initial funds came from TornadoCash, and the attackers stole over 2,400 BNB (approximately $728,000) from Dungeonswap.
Description of the event: @HideYoApes previously owned several expensive NFTs from Yuga Labs, including a Bored Ape, Mutant Ape, three Bored Ape Kennel Club NFTs, a SewerPass, and two Otherdeeds. The attacker sold all the NFTs for a profit of 127.3 wETH (~$208,000). HideYoApes explained on Twitter that he had downloaded and installed the MetaMask wallet extension from MetaMask’s official website.
Description of the event: According to the official blog, The Sandbox issued a security incident notice on February 26 that an unauthorized third party gained access to the computer of an employee of the team and used its permissions to send a false email claiming to be from The Sandbox . Titled "The Sandbox Game (PURELAND) Access," the email contained hyperlinks to malware that could remotely install malware on a user's computer, granting it control of the computer and access to the user's personal information right. The Sandbox said that after the unauthorized access was discovered, the recipient was notified and the employee's account and access to The Sandbox were disabled, and no further impact has been identified.
Description of the event: As Coindesk reported, the Solana network experienced a fork event that limited users’ ability to execute transactions. According to Solana Explorer, the network was processing about 93 transactions per second at around 2AM ET today, well below the previous network rate of nearly 5000 TPS about 15 minutes ago. Such low throughput has prohibited users from performing activities such as on-chain transactions and transfers on Solana.
Description of the event: On February 24, 2023, Earning.farm’s USDC vault was exploited and lost about 5.15 million USDC.