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Axie Infinity co-founder suffers $9.5M loss in wallet hack

Web3 & Enterprise·February 24, 2024, 7:54 AM

Jeff “Jihoz” Zirlin, one of the co-founders of Sky Mavis, the Singapore-headquartered development firm behind both Axie Infinity and the Ronin Network, has faced a significant setback as some of his personal crypto wallets have fallen victim to a hack.

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Photo by GuerrillaBuzz on Unsplash

Funds drained through Tornado Cash

The hack has resulted in the loss of approximately $9.7 million worth of ether (ETH). The breach, which occurred on Feb. 23, saw two crypto wallet addresses associated with Zirlin compromised. The perpetrator managed to abscond with 3,248 ETH, funneling the stolen funds through Tornado Cash, a privacy-focused Ethereum mixer.

 

The alarm was raised by PeckShield, a blockchain investigation firm, which identified the compromise of a "whale wallet" through the Ronin Bridge. PeckShield attributed the breach to a "wallet compromise," which facilitated unauthorized outbound transfers of funds.

 

PeckShield's investigation revealed that the pilfered 3,248 ETH was initially dispersed across three different wallets before being funneled into Tornado Cash. This service, notorious for its use by hackers seeking to obfuscate the origin and traceability of illicit funds, served as a conduit for the stolen assets.

 

Confirming the attack and remarking on having had a “tough morning,” Zirkin outlined on social media that “the attack is limited to my personal accounts, and has nothing to do with validation or operations of the Ronin chain.”

 

He emphasized the implementation of stringent security protocols across all chain-related activities, seeking to reassure stakeholders of the company’s commitment to safeguarding user assets. Although specific details regarding the breach remain undisclosed, Zirlin's statement suggests a leakage of the private keys associated with his personal wallets, granting unauthorized access to the hacker.

 

Ronin Network secure

PeckShield’s revelation prompted Aleksander Larsen, co-founder of Ronin Network, to swiftly respond, affirming the robust security measures of the Ronin Bridge. The social media post that Larsen had responded to, which he claimed to have an “extremely misleading title,” was later deleted.

 

Larsen suspected that the breach stemmed from a wallet hack rather than a flaw within the bridge itself. Notably, Ronin had been targeted in a high-profile attack in March 2022, orchestrated by the North Korea-backed Lazarus Group, resulting in a $625 million loss.

In response to this previous breach Sky Mavis initiated a comprehensive overhaul of Ronin's core systems to bolster decentralization and mitigate future vulnerabilities.

 

$112M Ripple co-founder hack

In a separate incident, Binance intercepted $4.2 million worth of stolen XRP, part of the $112 million hack targeting Ripple co-founder Chris Larsen's personal wallet on Jan. 31. Unlike the Axie Infinity breach, the perpetrator behind Larsen's hack refrained from leveraging crypto mixer services or decentralized exchanges, enabling Binance to track and immobilize a portion of the illicitly obtained funds.

 

Axie Infinity, heralded as a pioneering "play-to-earn" Web3 game, has emerged as a lucrative platform, enabling players to earn cryptocurrency and trade in-game assets via blockchain technology. Since its inception in 2018, the game has amassed $1.3 billion in revenue, underscoring its prominence within the burgeoning blockchain gaming ecosystem.

 

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Markets·

Aug 28, 2025

Crypto rally drives surge in South Koreans’ offshore disclosures

Fueled by a crypto rally and higher overseas stock balances, South Korea’s National Tax Service (NTS) reported a sharp jump in disclosures of offshore accounts. On Aug. 26, the agency said 6,858 taxpayers declared overseas financial accounts this year, with a combined balance of 94.5 trillion won ($67.6 billion), up 38.3% in filers and 45.6% (29.6 trillion won or $21.2 billion) in value from last year.Photo by Piotr Łaskawski on UnsplashCrypto gains drive offshore filingsWithin that, reports of overseas bank deposits and cryptocurrency accounts rose to 46.4 trillion won ($33.2 billion) this year, more than 12% above 2024. That figure excludes stock accounts, which alone totaled 48.1 trillion won ($34.4 billion). Tax officials attributed the increase largely to the surge in crypto prices and higher balances in overseas stock holdings. The trend is underscored by CoinMarketCap data: the crypto market cap now stands roughly at $3.87 trillion, up 86% from $2.08 trillion a year ago. By asset type, the largest share of filers reported overseas bank deposits (3,197 people), followed by cryptocurrency (2,320) and stocks (1,992). By value, stock accounts dominated with 48.1 trillion won ($34.4 billion), compared with 23.5 trillion won ($16.8 billion) in bank deposits and 11.1 trillion won ($7.94 billion) in cryptocurrencies. Korean law requires residents and domestic corporations to disclose foreign financial accounts if their combined balance exceeds 500 million won ($358,000) on any month-end date during the year. Reports must be filed with the local tax office by June of the following year. The NTS said it will step up enforcement against suspected non-filers, using cross-border information-exchange data to verify offshore holdings. Penalties will include administrative fines, penalty notices, criminal referrals, public naming of violators and the collection of back taxes. The agency added that it is preparing to share crypto transaction data under the OECD’s Crypto-Asset Reporting Framework (CARF) and urged anyone subject to the rules to promptly file amended or late reports for overseas crypto accounts. The recent bullish sentiment in crypto, which fueled the uptick in foreign financial disclosures, has also been driving public interest in digital assets and boosting expectations for altcoins. A survey by CoinNess and Kratos conducted between Aug. 18 and 22 with 2,000 respondents found that 38.5% expect a limited bull run in a handful of altcoins, either with strong real-world use cases or serving as the underlying assets of launched ETFs. Another 28.5% predicted gains would remain centered on Bitcoin and Ethereum, while 20.7% anticipated a broader altcoin season reminiscent of past cycles. The remaining 12.3% forecast the end of the rally and the start of a downturn. Won stablecoins: policy and risksPolicy momentum around stablecoins is also picking up in South Korea. The Financial Services Commission (FSC) plans to introduce a bill in October governing won-pegged stablecoins as part of the second phase of the Virtual Asset User Protection Act. The legislation is expected to set rules for issuance, collateral management and internal controls. Amid these changes, companies are showing growing interest in launching won-based stablecoins. Kaia, an EVM-compatible, layer-1 blockchain, recently signed a memorandum of understanding (MOU) with blockchain solutions provider Open Asset to collaborate on projects tied to Korean won–backed stablecoins. The partnership will focus on issuance, distribution, service launches and developing practical use cases. Circle President Heath Tarbert has recently joined calls for a won-backed stablecoin. In an interview with The Korea Economic Daily, he underscored South Korea’s world-class payments infrastructure and said a digital won could help the country play a leading role in blockchain finance. Blockchain transactions, he noted, operate differently from traditional payment rails, making some form of digital currency, whether a stablecoin or a central bank digital currency (CBDC), a necessity. Meanwhile, at a recent meeting with top executives from the country’s four major financial groups, Tarbert ruled out collaborations on won-denominated stablecoins. Instead, he promoted Circle’s dollar-pegged stablecoins and suggested exploring joint initiatives centered around them. Not everyone sees stablecoins as a net positive. NICE Investors Service, a local credit rating agency, warned in a recent report that if banks issue won-based stablecoins, their interest income could suffer. The agency said adoption would likely weigh on banks, benefit securities firms and leave credit card companies largely unaffected. It added that a large shift of funds into stablecoins could shrink banks’ deposit base and weaken their intermediary role. Still, banks that issue stablecoins directly could soften the blow by tapping new fee-based revenue streams. 

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Policy & Regulation·

Nov 27, 2023

How will Binance’s criminal case affect its presence in South Korea?

How will Binance’s criminal case affect its presence in South Korea?Binance, the world’s largest cryptocurrency exchange, has reached a settlement with the U.S. government to pay a fine of more than $4.3 billion after the exchange was accused of anti-money laundering (AML) and sanctions violations. Co-founder and CEO Changpeng Zhao also pleaded guilty to violating the Bank Secrecy Act, which requires financial institutions to submit documentation to prevent them from becoming mediums for criminal funding. Binance will thus be withdrawing completely from the U.S.Photo by Vadim Artyukhin on UnsplashNews of this incident has sparked keen interest within the South Korean crypto industry regarding the impact it could have on Binance’s presence and influence in the country.Murky future for Binance as Zhao resignsBinance allegedly failed to report transactions involving criminal entities such as terrorist groups, ransomware perpetrators and money launderers without implementing a system to prevent such crimes. In particular, organizations like the Izz ad-Din al-Qassam Brigades — the armed wing of the Palestinian militant group Hamas — as well as the Palestinian Islamic Jihad and ISIS were found to have utilized Binance as a channel for their funds. Furthermore, the exchange also facilitated transactions with users in sanctioned territories such as Iran, North Korea and Syria.Zhao has subsequently decided to step down as Binance’s CEO, taking to his X (formerly Twitter) account to state that he believes it is the right move. However, he also emphasized that the U.S. government did not accuse Binance of misappropriating user assets or engaging in market manipulation.Despite this fiasco, some insights have painted Binance’s future in a positive light. JPMorgan, the largest bank in the U.S., stated that the uncertainty surrounding Binance itself would diminish. “For crypto investors, the prospect of settlement would see the elimination of a potential systemic risk emanating from a hypothetical Binance collapse,” the bank said, according to an article published by digital asset news outlet The Block.GOPAX reaffirms partnership with Binance despite concernsGOPAX, a Korean fiat-to-crypto exchange that was acquired by Binance in February, also maintained a rather unexpected positive outlook. The acquisition had been followed by a complicated string of events hindering Binance’s full-fledged expansion in Korea, including delayed approval from the country’s Financial Intelligence Unit (FIU) to become a virtual asset service provider (VASP) and multiple leadership changes as a result.Investors in GOFi — GOPAX’s decentralized finance (DeFi) service — subsequently responded by filing a lawsuit at the end of June, claiming that financial authorities unjustly delayed the approval. They argued that, by approving the request, the FIU would enable Binance to provide the capital that GOPAX had struggled to gather to pay principal and interest payments on GOFi in the wake of last year’s FTX collapse.However, these circumstances did not sway GOPAX’s decision to work with Binance. “We learned of the news about Binance’s fine through articles from foreign media platforms,” GOPAX said. “Regardless, we are still in a business and technical partnership with the exchange.”Prospects for Binance’s landing in KoreaIn contrast to GOPAX’s seemingly positive outlook, the Korean crypto community has voiced mixed opinions about the effect of this development, especially on Binance’s successful entry into the domestic market.If GOPAX’s VASP approval had been delayed due to concerns about Binance’s suitability as its largest shareholder — incited by the legal risks it posed in the U.S. — the possibility of the approval going through may be more plausible as some of these risks have since been alleviated, said Yoon Seung-sik, an analyst at Seoul-based research firm Tiger Research.However, Jang Hye-won, an analyst at crypto data research platform Xangle, pointed out that interpretations may differ depending on the reasons behind FIU’s hesitation in approving the GOPAX acquisition. “If the concerns revolved around legal risks, then the path for Binance’s entry into Korea may seem cleared since those risks have been resolved. But if the concerns are about Binance’s capital inflow into the country, then this incident (Binance’s criminal case) will have no effect,” she explained.On the other end of the spectrum, some experts believe that this incident may have negatively affected the GOPAX acquisition. Hwang Suk-jin, a professor at Dongguk University’s Graduate School of International Affairs & Information Security and a member of the ruling People Power Party’s committee for virtual assets, stated, “Since criminal punishment for Zhao and the U.S. Securities and Exchange Commission’s (SEC) lawsuit are still pending, it’s hard to conclude that legal risks have been completely resolved. Binance paying a fine for money laundering may actually reinforce the FIU’s concerns about legal risks, making the GOPAX acquisition decisively unfavorable.”These statements come after a public opinion survey conducted earlier in June by Cratos, a Korean blockchain-based polling app, revealed that a 64.6% majority of respondents favored approving the GOPAX acquisition.

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Policy & Regulation·

Apr 11, 2023

North Korea Using DeFi for Money Laundering

North Korea Using DeFi for Money LaunderingThe United States Treasury issued a warning on Thursday where it identifies North Korea as a user of DeFi services for money laundering. According to the Treasury, both North Korea and criminal organizations have been using DeFi platforms to launder dirty money.©Pexels/PixabayWhile DeFi has been praised for its potential to democratize finance and provide greater financial freedom to users, it has also been criticized for its lack of regulatory oversight. According to the Treasury, this lack of oversight has made DeFi platforms an attractive target for money launderers and other criminal organizations.In its warning, the Treasury noted that North Korea has been using DeFi platforms to launder money and evade international sanctions. The country is believed to have developed a sophisticated system for laundering money through cryptocurrency exchanges, and it is now turning its attention to DeFi platforms.Illicit money movementCriminal organizations are also using DeFi services for money laundering, according to the Treasury. These groups are said to be using DeFi platforms to move money around the world, in order to avoid detection and to launder the proceeds of their illicit activities.The use of DeFi for money laundering poses a significant challenge for law enforcement agencies, as these platforms operate outside of the traditional banking system and are often difficult to track. The Treasury has urged DeFi platforms to implement strong anti-money laundering (AML) and know-your-customer (KYC) policies, in order to prevent their services from being used for criminal activities.The warning from the Treasury comes at a time when DeFi is becoming increasingly popular among investors and users. According to data from DeFi Pulse, the total value locked in DeFi protocols recently surpassed $100 billion, indicating a significant level of interest and investment in the sector.Calls for greater regulationHowever, the lack of regulatory oversight and the potential for DeFi to be used for money laundering and other criminal activities have raised concerns among regulators and policymakers. Some have called for greater regulation of the sector, in order to prevent its abuse by criminal organizations.Despite these concerns, many proponents of DeFi argue that the sector has the potential to transform the financial industry and provide greater financial freedom to users. They point to the benefits of decentralized systems, such as greater transparency, lower fees, and faster transaction times.The use of DeFi for money laundering is a complex issue that requires a multifaceted approach. While regulators and policymakers must work to implement strong AML and KYC policies, users and investors must also take responsibility for ensuring that they are using DeFi platforms in a responsible and legal manner.Ultimately, the future of DeFi will depend on how the sector is able to balance innovation and regulation. While DeFi has the potential to transform the financial industry, it must also be subject to appropriate oversight and accountability in order to prevent its abuse by criminal organizations.By working together, regulators, policymakers, and industry stakeholders can help to ensure that DeFi is used for its intended purpose — to provide greater financial freedom and empowerment to users around the world.

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