1. Mixin Network: $200 million dollars
In September, hackers stole $200 million from the user accounts of Mixin, a Hong Kong-based exchange.
After the attack, DL News reported that several industry insiders found the attack suspicious, in part because Mixin lacked a cold wallet to secure customer funds.
Mixin’s founder, Feng Xiaodong, promised to compensate customers for half of their losses. Some token withdrawals and deposits have been restored, but Mixin’s compensation plan is still unclear.
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2. Euler Finance: $197 million US dollars
In March, lending protocol Euler Finance was attacked, resulting in the theft of nearly $1.97 billion. The attacker exploited a vulnerability in Euler’s donation function contract, but later returned most of the stolen funds.
3. Multichain: 126 million US dollars
Cross-chain bridge protocol Multichain suffered a hacker attack in July after the project’s private key was leaked. At the time, cryptocurrency research company Chainalysis called it “one of the largest cryptocurrency hacks in history.”
4. Poloniex: 126 million US dollars
In November, hackers stole $1.26 billion from the cryptocurrency exchange Poloniex. After the funds were stolen, withdrawals were frozen.
According to DL News, Poloniex’s actual owner, Justin Sun, plans to provide victims with an “epic airdrop” of tokens as compensation for the hack.
On December 5th, Poloniex restored deposit and withdrawal services for multiple assets.
5. Atomic Wallet: 100 million US dollars
In June, Atomic Wallet users were hit by a hack, resulting in a $100 million loss.
Analysts blame the hack on the Lazarus Group, which is believed to be linked to North Korea. Following the attack, angry investors filed a class-action lawsuit against Atomic Wallet.
6. Heco Chain: 87 million US dollars
Similar to the Poloniex hack in November, a hacker attacked the hot wallet on the Heco chain.
Due to its relationship with HTX, HTX itself lost $12 million in the hack, and HTX investor Justin Sun has included Heco Chain in his compensation pledge to the victims of the hack.
7. Curve Finance: 62 million US dollars
DeFi protocol Curve Finance has been attacked multiple times, with hackers stealing nearly $62 million from multiple liquidity pools.
The attacks started with an initial vulnerability, leading to several seemingly unrelated hackers stealing information from multiple Curve pools.
8. CoinEx: 55 million US dollars
In September, hackers attacked CoinEx and made off with 55 million dollars. The exchange claimed it was due to “abnormal withdrawals” on their platform. CoinEx froze withdrawals for several weeks and promised to compensate customers. The exchange later blamed the hack on a leaked private key, which allowed the attackers to access their hot wallet.
9. KyberSwap Elastic: 48 million US dollars
In November, when HTX and Poloniex were hacked, an attacker carried out an unusually complex hack on the multi-chain aggregator KyberSwap Elastic.
Subsequently, the attacker posted a crazy ultimatum on the Etherscan block explorer, demanding control of the protocol.
10. Stake.com: 41 million US dollars
The online encrypted casino and sports betting platform Stake.com was hit by a hacker attack in September. “The financial loss is definitely not insignificant, but this attack did not have a significant impact on Stake’s operations,” said co-founder Edward Craven after the attack occurred.
The FBI later attributed this attack to the Lazarus cybercrime organization associated with North Korea.