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Hacked Event Broadcast

Live source archive

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.

Mar 26, 2019

2 verified updates
Crypptocurrency expert Nick Schteringard said on Twitter yesterday, that the hacker appears to have stolen roughly $6 million in Coinbene Coin and $39 million in Maximine Coin, which it later dumped on the market.ExpandCollapse

Crypptocurrency expert Nick Schteringard said on Twitter yesterday, that the hacker appears to have stolen roughly $6 million in Coinbene Coin and $39 million in Maximine Coin, which it later dumped on the market.

Amount of loss
$ 45,000,000
Attack method
Unknown
OtherSecurity

Mar 24, 2019

2 verified updates
DragonEx announced the news on its official Telegram channel on Monday, stating that, on Sunday, March 24, it had suffered a cyberattack that saw cryptocurrency funds owned by users and the exchange “transferred and stolen.” In updates on the hack today, DragonEx’s Telegram admin provided wallet addresses for 20 cryptocurrencies to which the stolen funds had apparently been transferred. The list included the top five cryptos by market capitalization: bitcoin (BTC), ether (ETH), XRP, litecoin (LTC) and EOS, as well as the tether stablecoin (USDT) for which six destination addresses were provided.ExpandCollapse

DragonEx announced the news on its official Telegram channel on Monday, stating that, on Sunday, March 24, it had suffered a cyberattack that saw cryptocurrency funds owned by users and the exchange “transferred and stolen.” In updates on the hack today, DragonEx’s Telegram admin provided wallet addresses for 20 cryptocurrencies to which the stolen funds had apparently been transferred. The list included the top five cryptos by market capitalization: bitcoin (BTC), ether (ETH), XRP, litecoin (LTC) and EOS, as well as the tether stablecoin (USDT) for which six destination addresses were provided.

Amount of loss
$ 6,028,283
Attack method
Wallet Stolen
ETH EcosystemSecurity
The Etbox platform wallet was hacked, causing the platform’s digital assets to be stolen.ExpandCollapse

The Etbox platform wallet was hacked, causing the platform’s digital assets to be stolen.

Amount of loss
$ 132,000
Attack method
Unknown
WalletSecurity

Mar 20, 2019

1 verified update
The attacker launch continuously attacks and profit from the dBet Games.ExpandCollapse

The attacker launch continuously attacks and profit from the dBet Games.

Amount of loss
24.8 EOS
Attack method
Transaction congestion attack
OtherSecurity

Mar 18, 2019

2 verified updates
The attacker justjiezhan1 launched an attack on the EOS game "cubecontract" and has already made a profit. Prior to this, the attacker justjiezhan1 started deploying the attack contract at around 12:00:41 on the same day. The analysts preliminary analyzed that the attacker was, still the same as the previous attack mean, transaction congestion attack.ExpandCollapse

The attacker justjiezhan1 launched an attack on the EOS game "cubecontract" and has already made a profit. Prior to this, the attacker justjiezhan1 started deploying the attack contract at around 12:00:41 on the same day. The analysts preliminary analyzed that the attacker was, still the same as the previous attack mean, transaction congestion attack.

Amount of loss
49.6 EOS
Attack method
Transaction congestion attack
EOS EcosystemSecurity
The attacker launched continuously attacks and profit from the EOSVegas. The analysis found that the attack mean used by the attacker was transaction congestion attack. The account is extremely active. It just attacked the quiz game EOS Cube and its related account has been marked as high risk.ExpandCollapse

The attacker launched continuously attacks and profit from the EOSVegas. The analysis found that the attack mean used by the attacker was transaction congestion attack. The account is extremely active. It just attacked the quiz game EOS Cube and its related account has been marked as high risk.

Amount of loss
39 EOS
Attack method
Transaction congestion attack
EOS EcosystemSecurity

Mar 15, 2019

2 verified updates
The attacker launched a hard_fail attack on the exchange and profited thousands of EOS.ExpandCollapse

The attacker launched a hard_fail attack on the exchange and profited thousands of EOS.

Attack method
Hard_fail attack
EOS EcosystemSecurity
The attacker justjiezhan1 launched an attack on the EOS game "YUM.games" and has already made a profit. After analysis, it is suspected that the attacker calls "gamestart" and draws the prize directly without betting the game.ExpandCollapse

The attacker justjiezhan1 launched an attack on the EOS game "YUM.games" and has already made a profit. After analysis, it is suspected that the attacker calls "gamestart" and draws the prize directly without betting the game.

Amount of loss
113 EOS
Attack method
Contract Vulnerability
EOS EcosystemSecurity

Mar 14, 2019

1 verified update
The attacker launched continuously attacks on the LuckyGo, profiting hundreds of EOS.ExpandCollapse

The attacker launched continuously attacks on the LuckyGo, profiting hundreds of EOS.

Amount of loss
200 EOS
Attack method
Transaction congestion attack
EOS EcosystemSecurity

Mar 12, 2019

1 verified update
The attacker launched continuously attacks on the dBet Games, profiting hundreds of EUSD which stablecoins issued on EOS. And has sold through the decentralized exchange Newdex.ExpandCollapse

The attacker launched continuously attacks on the dBet Games, profiting hundreds of EUSD which stablecoins issued on EOS. And has sold through the decentralized exchange Newdex.

Amount of loss
685 EUSD
Attack method
Transaction congestion attack
EOS EcosystemSecurity

Mar 11, 2019

1 verified update
The attacker launched continuous attacks on EOS DApp nkpaymentcap and successfully profited 50,000 EOS. After analysis, it was found that the attacker used a fake transfer notification attack to obtain a large number of contract tokens, and then exchanged the tokens into real EOS for cash out through the DApp contract.ExpandCollapse

The attacker launched continuous attacks on EOS DApp nkpaymentcap and successfully profited 50,000 EOS. After analysis, it was found that the attacker used a fake transfer notification attack to obtain a large number of contract tokens, and then exchanged the tokens into real EOS for cash out through the DApp contract.

Amount of loss
50,000 EOS
Attack method
Transfer error prompt
EOS EcosystemSecurity

Mar 10, 2019

1 verified update
The attacker launched a continuous attack on the EOS quiz game Vegas Town, profited thousands of EOS, and has been transferred to the ZB exchange. Preliminary analysis found that hackers used the failed (hard_fail) transfer transaction to cheat the game server, resulting in continued awards.ExpandCollapse

The attacker launched a continuous attack on the EOS quiz game Vegas Town, profited thousands of EOS, and has been transferred to the ZB exchange. Preliminary analysis found that hackers used the failed (hard_fail) transfer transaction to cheat the game server, resulting in continued awards.

Amount of loss
2,219 EOS
Attack method
Hard_fail attack
EOS EcosystemSecurity

Mar 9, 2019

1 verified update
The attacker launched a continuous attack on the EOS quiz game Gamble EOS, successfully profited thousands of EOS, and has been transferred to the Huobi exchange. After analysis, it was found that the attack method used by the attacker was a false transfer notification.ExpandCollapse

The attacker launched a continuous attack on the EOS quiz game Gamble EOS, successfully profited thousands of EOS, and has been transferred to the Huobi exchange. After analysis, it was found that the attack method used by the attacker was a false transfer notification.

Amount of loss
2,043.6 EOS
Attack method
Transfer error prompt
EOS EcosystemSecurity

Mar 8, 2019

1 verified update
The attacker launched a series of attacks on the EOS quiz game Fishing Joy, profiting hundreds of EOS. According to analysis, the attacker used the transaction crowding attack to trigger the game's refund mechanism, resulting in 100% profit.ExpandCollapse

The attacker launched a series of attacks on the EOS quiz game Fishing Joy, profiting hundreds of EOS. According to analysis, the attacker used the transaction crowding attack to trigger the game's refund mechanism, resulting in 100% profit.

Amount of loss
109.33 EOS
Attack method
Transaction congestion attack
EOS EcosystemSecurity

Mar 6, 2019

1 verified update
The attacker co****op launched continuous attacks on the EOS quiz game contract xlo*****io and has already profited hundreds of EOS. After preliminary analysis, the attacker used the logic defect of the game contract by directly invoking the transfer method, and multiple accounts coordinated to carry out the attack.ExpandCollapse

The attacker co****op launched continuous attacks on the EOS quiz game contract xlo*****io and has already profited hundreds of EOS. After preliminary analysis, the attacker used the logic defect of the game contract by directly invoking the transfer method, and multiple accounts coordinated to carry out the attack.

Amount of loss
42 EOS
Attack method
Logic Vulnerability
EOS EcosystemSecurity

Mar 5, 2019

1 verified update
The attacker launched continuously attacks on the OnePlay, getting almost all EOS of the game contract. And use the same attack mean to bet the game token ONE, profit nearly one million game tokens, and then transfer to the newdex exchange for sale.ExpandCollapse

The attacker launched continuously attacks on the OnePlay, getting almost all EOS of the game contract. And use the same attack mean to bet the game token ONE, profit nearly one million game tokens, and then transfer to the newdex exchange for sale.

Amount of loss
449 EOS
Attack method
Random number attack
EOS EcosystemSecurity

Mar 4, 2019

1 verified update
Hackers launched continuous attacks on the EOS quiz game EOS Happy Valley, and they have profited hundreds of EOS. The game party has transferred the account balance away. Attackers still use transaction crowding out attacks. To completely fix this vulnerability, DApp developers should remove controllable variables such as account balance or time factors to participate in random number generation.ExpandCollapse

Hackers launched continuous attacks on the EOS quiz game EOS Happy Valley, and they have profited hundreds of EOS. The game party has transferred the account balance away. Attackers still use transaction crowding out attacks. To completely fix this vulnerability, DApp developers should remove controllable variables such as account balance or time factors to participate in random number generation.

Amount of loss
419 EOS
Attack method
Transaction congestion attack
EOS EcosystemSecurity

Feb 22, 2019

1 verified update
Tracking the blacklist account gm3dcnqgenes found that its associated account newdexmobapp received 2.09 million EOS, and has now transferred 50,000 EOS to its associated account guagddoefdqu. And in batches of hundreds to thousands of EOS each time, transferred to the stock exchange account (huobideposit), and the remaining 2.04 million EOS, has been dispersed to ftsqfgjoscma, hpbcc4k42nxy, 3qyty1khhkhv, xzr2fbvxwtgt, myqdqdj4qbge, Shprzailrazt, qkwrmqowelyu, lmfsopxpr324, lhjuy3gdkpq4, lcxunh51a1gt, geydddsfkk5e, pnsdiia1pcuy, kwmvzswquqpb, etc., there is the possibility of further turning to the exchange.ExpandCollapse

Tracking the blacklist account gm3dcnqgenes found that its associated account newdexmobapp received 2.09 million EOS, and has now transferred 50,000 EOS to its associated account guagddoefdqu. And in batches of hundreds to thousands of EOS each time, transferred to the stock exchange account (huobideposit), and the remaining 2.04 million EOS, has been dispersed to ftsqfgjoscma, hpbcc4k42nxy, 3qyty1khhkhv, xzr2fbvxwtgt, myqdqdj4qbge, Shprzailrazt, qkwrmqowelyu, lmfsopxpr324, lhjuy3gdkpq4, lcxunh51a1gt, geydddsfkk5e, pnsdiia1pcuy, kwmvzswquqpb, etc., there is the possibility of further turning to the exchange.

Amount of loss
2,090,000 EOS
Attack method
Unknown
EOS EcosystemSecurity

Feb 20, 2019

1 verified update
Coinbin, a south Korean cryptocurrency exchange, is filing for bankruptcy with losses equivalent to more than $26 million after its debts grew after employees embezzled money.ExpandCollapse

Coinbin, a south Korean cryptocurrency exchange, is filing for bankruptcy with losses equivalent to more than $26 million after its debts grew after employees embezzled money.

Amount of loss
$ 26,000,000
Attack method
Insider Manipulation
ExchangeSecurity

Feb 15, 2019

1 verified update
Gameboy, a EOS game was attacked. Attacker cont****inop deployed a contract and attacked by calling launch function. According to the analysis of SlowMist security team and confirmed with project side by communication.The project side wrongly add a controlled seed in random algorithm which lead the attack.ExpandCollapse

Gameboy, a EOS game was attacked. Attacker cont****inop deployed a contract and attacked by calling launch function. According to the analysis of SlowMist security team and confirmed with project side by communication.The project side wrongly add a controlled seed in random algorithm which lead the attack.

Attack method
Random number attack
EOS EcosystemSecurity