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Hacked Event Broadcast

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Verified blockchain security incidents with original evidence and historical event dates.

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Historical events use their original event dates. Latest event dates first. Severity follows existing archive classifications.

Nov 15, 2021

1 verified update
The Nerve cross-chain bridge MetaPool was attacked. This attack was an exploit of the logical vulnerabilities of fUSDT and UST MetaPool on the Nerve cross-chain bridge BSC, causing the fUSDT and UST liquidity in the Nerve staking pool to be exhausted, and the attacker made a profit of about 900 BNB . The attacked contract code Fork is from Saddle.Finance.ExpandCollapse

The Nerve cross-chain bridge MetaPool was attacked. This attack was an exploit of the logical vulnerabilities of fUSDT and UST MetaPool on the Nerve cross-chain bridge BSC, causing the fUSDT and UST liquidity in the Nerve staking pool to be exhausted, and the attacker made a profit of about 900 BNB . The attacked contract code Fork is from Saddle.Finance.

Amount of loss
900 BNB
Attack method
Logic Vulnerability
BSC EcosystemSecurity

Nov 11, 2021

1 verified update
The stablecoin transaction protocol Curve caused losses to users who provided USDM liquidity due to the "governance attack" of the USDM stablecoin protocol Mochi. At present, Curve has dealt with urgently to avoid a wider range of losses. Previously, the Mochi project party purchased Convex's CVX tokens, voted to increase the USDM pool rewards to increase the liquidity of USDM and other assets, and then converted a large amount of USDM tokens owned by the project party into DAI after the liquidity increased. The team A total of 46 million USDM was exchanged for DAI. Based on the USDM to DAI exchange rate, the user loss that provides USDM liquidity to other stablecoins may be close to 30-40 million U.S. dollars.ExpandCollapse

The stablecoin transaction protocol Curve caused losses to users who provided USDM liquidity due to the "governance attack" of the USDM stablecoin protocol Mochi. At present, Curve has dealt with urgently to avoid a wider range of losses. Previously, the Mochi project party purchased Convex's CVX tokens, voted to increase the USDM pool rewards to increase the liquidity of USDM and other assets, and then converted a large amount of USDM tokens owned by the project party into DAI after the liquidity increased. The team A total of 46 million USDM was exchanged for DAI. Based on the USDM to DAI exchange rate, the user loss that provides USDM liquidity to other stablecoins may be close to 30-40 million U.S. dollars.

Amount of loss
$ 30,000,000
Attack method
Governance Attack
ExchangeSecurity

Nov 10, 2021

1 verified update
According to a report from BleepingComputer on November 10, the electronic retail giant MediaMarkt suffered a ransomware attack. This attack affected many MediaMarkt retail stores throughout Europe, especially those in the Netherlands. The attacker initially asked for a ransom of 240 million US dollars. It was dropped to 50 million U.S. dollars and demanded to be paid in Bitcoin. According to the company later, customer data is "completely secure." The company's stores are now also reopening for exchanges, returns, and repair orders.ExpandCollapse

According to a report from BleepingComputer on November 10, the electronic retail giant MediaMarkt suffered a ransomware attack. This attack affected many MediaMarkt retail stores throughout Europe, especially those in the Netherlands. The attacker initially asked for a ransom of 240 million US dollars. It was dropped to 50 million U.S. dollars and demanded to be paid in Bitcoin. According to the company later, customer data is "completely secure." The company's stores are now also reopening for exchanges, returns, and repair orders.

Attack method
Ransomware
OtherSecurity

Nov 9, 2021

1 verified update
Robinhood, a stock and cryptocurrency trading platform, stated that on the evening of November 3, an intruder entered the company’s system and stole the personal information of millions of users. The full names of the users, the names of about 310 users, the date of birth and postal code were leaked, and the more detailed account information of about 10 users was leaked. The intruder demanded blackmail for payment. The company notified law enforcement and continued to investigate the incident with the help of the external security company Mandiant. Robinhood stated that the attack had been contained. Robinhood believed that it did not expose social security numbers, bank account numbers or debit card numbers, and did not cause any economic losses to customers due to the incident.ExpandCollapse

Robinhood, a stock and cryptocurrency trading platform, stated that on the evening of November 3, an intruder entered the company’s system and stole the personal information of millions of users. The full names of the users, the names of about 310 users, the date of birth and postal code were leaked, and the more detailed account information of about 10 users was leaked. The intruder demanded blackmail for payment. The company notified law enforcement and continued to investigate the incident with the help of the external security company Mandiant. Robinhood stated that the attack had been contained. Robinhood believed that it did not expose social security numbers, bank account numbers or debit card numbers, and did not cause any economic losses to customers due to the incident.

Attack method
Information Leakage
ExchangeSecurity

Nov 7, 2021

1 verified update
According to reports, a currency stolen event occurred in Farmers World, a farm-type game on the WAX ​​chain, and the amount may exceed 100 million yuan. Some players have found that the game shows "Insufficient RAM" prompts, which cannot be solved even after adding WAXP. According to the official Discord discussion information: Neither the project smart contract nor the WAX ​​wallet has vulnerabilities, but the address where the user pledged WAXP is not the official address of the game. It may be that the game "plug-in" script changed the user pledge address, causing the user to be unable to obtain RAM resources.ExpandCollapse

According to reports, a currency stolen event occurred in Farmers World, a farm-type game on the WAX ​​chain, and the amount may exceed 100 million yuan. Some players have found that the game shows "Insufficient RAM" prompts, which cannot be solved even after adding WAXP. According to the official Discord discussion information: Neither the project smart contract nor the WAX ​​wallet has vulnerabilities, but the address where the user pledged WAXP is not the official address of the game. It may be that the game "plug-in" script changed the user pledge address, causing the user to be unable to obtain RAM resources.

Amount of loss
$ 15,700,000
Attack method
Malicious Code Injection Attack
WalletSecurity

Nov 6, 2021

1 verified update
The asset cross-chain bridge launched by the cross-chain protocol Synapse Protocol is suspected to have loopholes, and the attacker manipulated the virtual price of nUSD Metapool, reducing it by about 12.5%. Ultimately, although the funds were withdrawn from the metapool itself, the funds were not lost. When the validator is offline, the address that took the funds from the LP tries to move the funds through the bridge, so the transaction has not yet been processed. However, the validators unanimously decided not to process this transaction because it was malicious to the LP and the entire network: as a result, ~$8.2 million in nUSD was not minted to the attacker's address on the target chain. The nUSD will be returned to the affected Avalanche LPs instead.ExpandCollapse

The asset cross-chain bridge launched by the cross-chain protocol Synapse Protocol is suspected to have loopholes, and the attacker manipulated the virtual price of nUSD Metapool, reducing it by about 12.5%. Ultimately, although the funds were withdrawn from the metapool itself, the funds were not lost. When the validator is offline, the address that took the funds from the LP tries to move the funds through the bridge, so the transaction has not yet been processed. However, the validators unanimously decided not to process this transaction because it was malicious to the LP and the entire network: as a result, ~$8.2 million in nUSD was not minted to the attacker's address on the target chain. The nUSD will be returned to the affected Avalanche LPs instead.

Attack method
Price Manipulation
Avalanche EcosystemSecurity

Nov 5, 2021

1 verified update
The margin trading lending platform bZx tweeted that the private keys controlling Polygon and Binance Smart Chain (BSC) deployment appeared to have been leaked, resulting in a loss of funds. The bZx smart contract itself was not compromised, and the deployment, governance and DAO vault of Ethereum were not affected by this incident.ExpandCollapse

The margin trading lending platform bZx tweeted that the private keys controlling Polygon and Binance Smart Chain (BSC) deployment appeared to have been leaked, resulting in a loss of funds. The bZx smart contract itself was not compromised, and the deployment, governance and DAO vault of Ethereum were not affected by this incident.

Amount of loss
$ 55,040,167
Attack method
Private Key Leakage
ETH EcosystemSecurity

Nov 3, 2021

1 verified update
According to official sources, the No. 23 loan pool VesperLendbeta on the DeFi protocol RariFuse was attacked. The attacker consumed a large amount of VUSD liquidity in Uniswapv3, and created a VUSD/USDC liquidity pool to manipulate the oracle VUSD price feed function and raise the VUSD price. After lending a large amount of assets on VesperLend, the final profit was 3 million US dollars. At present, Vesper has officially suspended the borrowing of the functions of VUSD and vVSP on the RariFuse platform, and is working closely with Rari, Year and Uniswap to investigate the full impact of the attack. The investigation results and response measures will be updated in the future.ExpandCollapse

According to official sources, the No. 23 loan pool VesperLendbeta on the DeFi protocol RariFuse was attacked. The attacker consumed a large amount of VUSD liquidity in Uniswapv3, and created a VUSD/USDC liquidity pool to manipulate the oracle VUSD price feed function and raise the VUSD price. After lending a large amount of assets on VesperLend, the final profit was 3 million US dollars. At present, Vesper has officially suspended the borrowing of the functions of VUSD and vVSP on the RariFuse platform, and is working closely with Rari, Year and Uniswap to investigate the full impact of the attack. The investigation results and response measures will be updated in the future.

Amount of loss
$ 3,000,000
Attack method
Oracle Attack
ExchangeSecurity

Nov 1, 2021

2 verified updates
Chivo Wallet is a national digital wallet issued by the government of El Salvador on September 7 for the implementation of the Bitcoin Act. To this end, El Salvador promised that users who download and authenticate the Chivo Wallet will receive a $30 bitcoin reward. This move allowed the official wallet of El Salvador to exceed 2 million users in one month. Between October 9th and October 14th, Cristosal, a human rights organization in El Salvador, received 755 notices about Salvadorans reporting that their Chivo wallet identity was stolen.ExpandCollapse

Chivo Wallet is a national digital wallet issued by the government of El Salvador on September 7 for the implementation of the Bitcoin Act. To this end, El Salvador promised that users who download and authenticate the Chivo Wallet will receive a $30 bitcoin reward. This move allowed the official wallet of El Salvador to exceed 2 million users in one month. Between October 9th and October 14th, Cristosal, a human rights organization in El Salvador, received 755 notices about Salvadorans reporting that their Chivo wallet identity was stolen.

Amount of loss
$ 22,650
Attack method
Wallet Stolen
WalletSecurity
According to reports, the BSC project SQUID, which has the same name as the popular Korean drama "Squid Game", is suspected of running off or being attacked, with an estimated loss of 12 million USDT. According to the data, the official website of the project party cannot be opened at present; all the tokens in the current Pancake pledge pool have been transferred to the address: 0x71D934Aa2119CA3995F702f075d540f7A6b0f728 through two transactions. The hash value of one of the transactions on the BSC is: 0xf7c9d0e5a81999f9e06fe78df7ce41da112d8bd4f2da7b16cfdbbe46c92cb6af. The address for initiating the token withdrawal transaction is 0x614826D885FF973324a5C3f43369d7C413a88aea. In addition, traders from the address 0x1f5eabba9c56bca4a7828969b79bc87051125b31 sold SQUID tokens to transfer the BNB in ​​the trading pair in Pancake to: 0x71D934Aa2119CA3995F702f075d540f7A6b0f728. The source of the initial gas required for the above transactions comes from the currency mixing application Tornado.Cash.ExpandCollapse

According to reports, the BSC project SQUID, which has the same name as the popular Korean drama "Squid Game", is suspected of running off or being attacked, with an estimated loss of 12 million USDT. According to the data, the official website of the project party cannot be opened at present; all the tokens in the current Pancake pledge pool have been transferred to the address: 0x71D934Aa2119CA3995F702f075d540f7A6b0f728 through two transactions. The hash value of one of the transactions on the BSC is: 0xf7c9d0e5a81999f9e06fe78df7ce41da112d8bd4f2da7b16cfdbbe46c92cb6af. The address for initiating the token withdrawal transaction is 0x614826D885FF973324a5C3f43369d7C413a88aea. In addition, traders from the address 0x1f5eabba9c56bca4a7828969b79bc87051125b31 sold SQUID tokens to transfer the BNB in ​​the trading pair in Pancake to: 0x71D934Aa2119CA3995F702f075d540f7A6b0f728. The source of the initial gas required for the above transactions comes from the currency mixing application Tornado.Cash.

Amount of loss
$ 12,000,000
Attack method
Rug Pull
BSC EcosystemSecurity

Oct 30, 2021

1 verified update
The decentralized transaction protocol BXH tweeted that the assets of the protocol on the Binance Smart Chain (BSC) chain were hacked.ExpandCollapse

The decentralized transaction protocol BXH tweeted that the assets of the protocol on the Binance Smart Chain (BSC) chain were hacked.

Amount of loss
$ 139,195,315
Attack method
Private Key Leakage
BSC EcosystemSecurity

Oct 29, 2021

2 verified updates
According to Etherscan data, the OHM imitation project AnubisDAO, which was launched at Copper Launch, withdrew its liquidity pool one day after it went online. It is suspected that the volume of money went off the road. A total of more than 13,556 ETH were transferred to the address @0x9fc, worth about 58.3 million U.S. dollars. Jayson, the founding partner of PFR Capital, pointed out that AnubisDAO is just a Twitter account that was only registered a few days ago. There is no website, white paper, medium, and no products.ExpandCollapse

According to Etherscan data, the OHM imitation project AnubisDAO, which was launched at Copper Launch, withdrew its liquidity pool one day after it went online. It is suspected that the volume of money went off the road. A total of more than 13,556 ETH were transferred to the address @0x9fc, worth about 58.3 million U.S. dollars. Jayson, the founding partner of PFR Capital, pointed out that AnubisDAO is just a Twitter account that was only registered a few days ago. There is no website, white paper, medium, and no products.

Amount of loss
13,556 ETH
Attack method
Rug Pull
ETH EcosystemSecurity
The DeFi protocol AutoShark Finance on the Binance Smart Chain was attacked by hackers in a series of transactions, and the hackers made a profit of US$2 million (the protocol loss may be even greater). Previously, AutoShark was attacked by a flash loan in May, and the currency price crashed. AutoShark responded that it would issue a new token, JAWS, to compensate damaged users. Since then, AutoShark was attacked by lightning loan again in early October, and hackers made a profit of approximately US$580,000.ExpandCollapse

The DeFi protocol AutoShark Finance on the Binance Smart Chain was attacked by hackers in a series of transactions, and the hackers made a profit of US$2 million (the protocol loss may be even greater). Previously, AutoShark was attacked by a flash loan in May, and the currency price crashed. AutoShark responded that it would issue a new token, JAWS, to compensate damaged users. Since then, AutoShark was attacked by lightning loan again in early October, and hackers made a profit of approximately US$580,000.

Amount of loss
$ 2,000,000
Attack method
Flash loan attack
BSC EcosystemSecurity

Oct 27, 2021

1 verified update
Cream Finance, the DeFi lending agreement, was attacked and lost approximately US$130 million. The stolen funds were mainly Cream LP tokens and other ERC-20 tokens. It is reported that this is the third largest DeFi hacking in history (although the two larger hacking incidents have funds returned), in addition, Cream Finance has suffered multiple lightning loan attacks before, and lost 37.5 million US dollars in February. Another $19 million was lost.ExpandCollapse

Cream Finance, the DeFi lending agreement, was attacked and lost approximately US$130 million. The stolen funds were mainly Cream LP tokens and other ERC-20 tokens. It is reported that this is the third largest DeFi hacking in history (although the two larger hacking incidents have funds returned), in addition, Cream Finance has suffered multiple lightning loan attacks before, and lost 37.5 million US dollars in February. Another $19 million was lost.

Amount of loss
$ 130,000,000
Attack method
Flash loan attack
ETH EcosystemSecurity

Oct 24, 2021

2 verified updates
The IDO project SaturnBeam of MoonSwap, a decentralized exchange on the Moonriver chain, ran away, and MoonSwap tweeted a warning that SaturnBeam would refund the money within 24 hours.ExpandCollapse

The IDO project SaturnBeam of MoonSwap, a decentralized exchange on the Moonriver chain, ran away, and MoonSwap tweeted a warning that SaturnBeam would refund the money within 24 hours.

Amount of loss
$ 12,000,000
Attack method
Rug Pull
ExchangeSecurity
According to Cointelegraph reports, some Youtube channels were hacked and seized control. The original content and information of these channels were destroyed by hackers. Hackers pretended to be large technology companies or cryptocurrency exchanges to commit fraud. These channels were also used by hackers for $3 to $4,000. Sold at varying prices. The Google Threat Analysis Team (TAG) stated that the hackers who attacked the Youtube channel came from a Russian-speaking forum. In addition, Google has shared the findings with the FBI for further investigation.ExpandCollapse

According to Cointelegraph reports, some Youtube channels were hacked and seized control. The original content and information of these channels were destroyed by hackers. Hackers pretended to be large technology companies or cryptocurrency exchanges to commit fraud. These channels were also used by hackers for $3 to $4,000. Sold at varying prices. The Google Threat Analysis Team (TAG) stated that the hackers who attacked the Youtube channel came from a Russian-speaking forum. In addition, Google has shared the findings with the FBI for further investigation.

Attack method
YouTube was hacked
OtherSecurity

Oct 23, 2021

2 verified updates
These implicit assumptions on Uniswap V2 resulted in 20 addresses on Alpha Homora V2 being impacted and lost a total of 40.93 ETH to miners who extracted this value. We have plans to compensate these 20 addresses. However, what’s more important is to share this with our community, especially other builders in the space to be aware of these implicit assumptions that are not stated, how you can detect this as a builder, and how to prevent/mitigate this.ExpandCollapse

These implicit assumptions on Uniswap V2 resulted in 20 addresses on Alpha Homora V2 being impacted and lost a total of 40.93 ETH to miners who extracted this value. We have plans to compensate these 20 addresses. However, what’s more important is to share this with our community, especially other builders in the space to be aware of these implicit assumptions that are not stated, how you can detect this as a builder, and how to prevent/mitigate this.

Amount of loss
40.93 ETH
Attack method
Sandwich attack
ETH EcosystemSecurity
Email addresses belonging to 3.1 million CoinMarketCap users were leaked last week, according to Have I Been Pwned.Have I Been Pwned says that the website’s database was breached on Oct. 12, 2021. Exactly 3,117,548 email addresses, not including passwords, were stolen in the security breach.ExpandCollapse

Email addresses belonging to 3.1 million CoinMarketCap users were leaked last week, according to Have I Been Pwned.Have I Been Pwned says that the website’s database was breached on Oct. 12, 2021. Exactly 3,117,548 email addresses, not including passwords, were stolen in the security breach.

Attack method
Information Leakage
OtherSecurity

Oct 21, 2021

2 verified updates
Avalanche ecological stability income aggregation agreement Avaterra Finance was attacked by hackers. The security company Rugdoc analyzed that the contract of the agreement is a fork of Goose, but their token contains custom elements, and anyone can call its minting function. In the end, the hacker called the contract and minted and dumped thousands of tokens.ExpandCollapse

Avalanche ecological stability income aggregation agreement Avaterra Finance was attacked by hackers. The security company Rugdoc analyzed that the contract of the agreement is a fork of Goose, but their token contains custom elements, and anyone can call its minting function. In the end, the hacker called the contract and minted and dumped thousands of tokens.

Attack method
Contract Vulnerability
Avalanche EcosystemSecurity
Bug bounty platform Immunefi says white hat hacker Gerhard Wagner submitted a critical vulnerability affecting the Polygon Plasma Bridge on October 5, 2021 that allows attackers to withdraw their burn transactions from the bridge multiple times for up to 223 times. About $850 million is at risk, and an attack with just $100,000 would result in a loss of $22.3 million. Polygon confirmed the bug and immediately began fixing the underlying issue, which was resolved within a week. Polygon agreed to pay up to $2 million for the submission.ExpandCollapse

Bug bounty platform Immunefi says white hat hacker Gerhard Wagner submitted a critical vulnerability affecting the Polygon Plasma Bridge on October 5, 2021 that allows attackers to withdraw their burn transactions from the bridge multiple times for up to 223 times. About $850 million is at risk, and an attack with just $100,000 would result in a loss of $22.3 million. Polygon confirmed the bug and immediately began fixing the underlying issue, which was resolved within a week. Polygon agreed to pay up to $2 million for the submission.

Amount of loss
$ 2,000,000
Attack method
Double Spend Attack
Polygon EcosystemSecurity