Summary # On August 18, 2021, Liquid, a Japanese cryptocurrency exchange, was hacked for $97 million. The attacker gained access to one of the exchange’s hot wallets, which are used to store user funds that are available for withdrawal.
Attackers # The identity of the attacker(s) is unknown.
BTC:
1Fx1bhbCwp5LU2gHxfRNiSHi1QSHwZLf7q ETH:
0x5578840aae68682a9779623fa9e8714802b59946 0xefb33ccafc98d5fdb27a6f5ff17350ca76bf3b53 XRP:
rfapBqj7rUkGju7oHTwBwhEyXgwkEM4yby TRX:
TSpcue3bDfZNTP1CutrRrDxRPeEvWhuXbp Losses # The attackers managed to steal a total of $97 million worth of cryptocurrency from the Liquid hot wallet.
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Summary # In April 2021, Turkey-based cryptocurrency exchange Thodex collapsed in an exit scam, defrauding investors of $2 billion. Thodex’s founder, Faruk Fatih Ozer, fled to Albania with the stolen funds but was later arrested and extradited back to Turkey. In January 2023, Faruk Fatih Ozer and his two siblings were sentenced to 11,196 years in prison each for money laundering, fraud, and organized crime. Thodex’s rapid growth and promises of a safe and secure trading platform concealed its fraudulent intentions.
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Summary # On June 23, 2021, Africrypt, a centralized platform claiming to connect banks, payment providers, and digital asset providers for seamless global money transfers, was reportedly compromised. Ameer and Raees Cajee, the exchange’s founders, were reported missing after alleging that almost $3.6 billion invested in the protocol was stolen in a “hack”. Africrypt staff lost access to the exchange’s back-end systems seven days before the claimed attack. Subsequent investigations found that most of the bitcoin invested with the exchange had been withdrawn and moved through tumblers and mixers, making it harder to track.
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Summary # On December 21, 2020, the attackers gained unauthorized access to the EXMO exchange’s hot wallets. Through these security weaknesses, they managed to execute malicious transactions, resulting in the theft of a substantial amount of cryptocurrency.
Attackers # The identities of the attackers remain undisclosed. The following addresses were involved:
1A4PXZE5j8v7UuapYckq6fSegmY5i8uUyq 0x4BA6B2fF35055aF5406923406442cD3aB29F50Ce qrfrw5q9gag2vp6jc5nlx0haplm2jlhx9vsvxd9u3e t1StUQiw1YyHT515xDxwxjfhEcw2iGSq2yL rwU8rAiE2eyEPz3sikfbHuqCuiAtdXqa2v Destination Tag: 2033412069 0x4d9EF6846126Da2867AF503448be0508542C971e Losses # The EXMO security breach resulted in the theft of around $10.
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Summary # On September 26, 2020, KuCoin, a Singapore-based cryptocurrency exchange, experienced a significant security breach, resulting in the theft of approximately $281 million worth of cryptocurrencies. The hackers obtained the private keys to the exchange’s hot wallets. The hackers sold the stolen cryptocurrency from their addresses on decentralized exchanges and anonymized the stolen cryptocurrencies through the mixing services. The incident caused a temporary drop in the price of KuCoin’s exchange token KCS by 14%, to $0.
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Summary # Eterbase, a European cryptocurrency exchange, based in Slovakia, suffered a significant security breach on September 7, 2020. Multiple hot wallets were compromised, including in Bitcoin, Ethereum, Tron, Tezos, Algorand and Ripple chains, leading to the theft of approximately $5,400,000 in various cryptocurrencies. The stolen funds were moved to different addresses and subsequently withdrawn to centralized exchanges like Binance, Huobi, and HitBTC.
Attackers # The identity of the attackers remains unknown.
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Summary # In August 2020, 2gether, a European cryptocurrency platform, was hacked, resulting in the loss of €1.183 million worth of cryptocurrencies. A combination of poor security practices and system vulnerabilities allowed the attackers to access user funds, causing significant damage to the platform’s reputation and customer trust.
Attackers # The attackers behind the 2gether hack remain unidentified.
Losses # 2gether lost €1.183 million worth of cryptocurrencies, which included various types of crypto assets.
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Summary # On November 27, 2019, Upbit, one of South Korea’s largest cryptocurrency exchanges, fell victim to a major cyberattack, resulting in the theft of approximately $49 million worth of Ethereum (342,000 ETH). The attack specifically targeted Upbit’s hot wallet, from which the funds were transferred to an unknown wallet address. To safeguard the remaining assets, Upbit promptly moved them to cold storage as a safety measure. The exchange took immediate action, replenishing the stolen funds with its own assets and ensuring no impact on its customers.
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Summary # In July 2019, BITPoint, a Japanese cryptocurrency exchange, suffered a security breach in which hackers gained unauthorized access to the exchange’s hot wallets, resulting in the theft of approximately $28 million worth of cryptocurrency. The attack was attributed to the theft of private keys associated with the hot wallets.
Attackers # The identity of the hackers who attacked BITPoint in July 2019 is not publicly known. Bitpoint has not released any information regarding the perpetrators of the attack, and it is unclear whether any suspects have been identified or apprehended by law enforcement authorities.
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Summary # On June 2, 2019, Kraken, a respected cryptocurrency exchange, experienced a flash crash on its Bitcoin-to-Canadian Dollar (BTC/CAD) trading pair. In a matter of seconds, the price of BTC dropped from $11,200 CAD to just over $101 CAD, a decline of over 99%. The incident resulted in losses of approximately $10,470,000 USD, equivalent to 1,200 BTC. Analysts suggest that this event was executed by a hacker attempting to siphon funds from Kraken.
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