Mixin Network Suffers $200m Loss In Assets After Exploit

Decentralized peer-to-peer network Mixin Network confirmed in a disclosure published today that it incurred a loss of roughly $200 million in digital assets after an exploit that’s still under investigation.

The loss resulted from a cyberattack that took place two days prior, compromising the database of a third-party cloud service provider. Following the breach, Mixin Network suspended all deposit and withdrawal services.

[Announcement] In the early morning of September 23, 2023 Hong Kong time, the database of Mixin Network’s cloud service provider was attacked by hackers, resulting in the loss of some assets on the mainnet. We have contacted Google and blockchain security company @SlowMist_Team…

— Mixin Kernel (@MixinKernel) September 25, 2023

Mixin Network has enlisted the assistance of blockchain security company SlowMist and tech giant Google to help in the ongoing investigation and potential asset recovery. According to an independent assessment by PeckShield, at the time of the breach, Mixin’s asset portfolio included approximately $94.48 million in Ether (ETH), $23.55 million in Dai (DAI), and $23.3 million in Bitcoin (BTC), bringing the total portfolio value to about $141.32 million.

Further details about the incident were disclosed by Web3 SaaS analytics platform 0xScope. It revealed a previous interaction between the suspected hacker’s address, identified as 0x1795, and Mixin Network. The address received 5 ETH from Mixin in 2022, which was later deposited into the Binance exchange. 0xScope analysts suggested that the hacker converted the stolen Tether (USDT) to DAI, possibly to circumvent potential fund-freezing measures. Mixin Network stated that deposits and withdrawals would resume once all vulnerabilities have been confirmed and resolved. However, the company has yet to announce a detailed plan to recover the lost assets for its users.

While a public Mandarin livestream featuring Mixin founder Feng Xiaodong had been scheduled to provide further explanations on September 25, no links to the event appeared on Mixin’s official social media channels or its website.

The episode adds to the existing discourse on the security challenges facing blockchain platforms, particularly as substantial sums are involved. Roughly a week ago, Balancer was also subjected to an exploit after an initial attack. Solana’s Cypher Protocol was also hit with an exploit with the damage ranging around $1 million. According to the separate investigation by PeckShield, Mixin Network held digital assets totaling $141.32 million at the time of the breach, underlining the scale of financial resources managed by such platforms.

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