Korea’s Code Launches System to Detect Blacklisted Crypto Wallets

Coti plans transition to Ethereum layer-2 network in 2024Israeli blockchain developer Coti plans to introduce a scalable, privacy-focused Ethereum layer-2 protocol in 2024. This strategic move aims to extend Coti’s privacy-centric features to a wider audience within the Ethereum ecosystem.Photo by Zoltan Tasi on UnsplashIncorporating ‘garbled circuits’Taking to the X social media platform on Wednesday, Coti unveiled its plan to transition from a standalone protocol to an Ethereum layer-2. The centerpiece of the project, which Coti has termed “Coti v2: a privacy-centric Ethereum L2,” is a cryptographic method known as “garbled circuits.”Garbled circuits are a cryptographic primitive that enables two or more parties to evaluate an arbitrary Boolean circuit securely, without revealing any information beyond the output, all while using a constant number of communication rounds. This innovative approach enables the processing of transactions without exposing sensitive information and data, aligning with the platform’s commitment to privacy.Having originated in the 1980s, garbling protocols have evolved into a crucial element of privacy-preserving technologies, excelling in scenarios where confidential data needs to be part of a computation without revealing the information itself.Focusing on privacyCoti CEO Shahaf Bar-Geffen emphasized the significance of this privacy-oriented protocol, stating:“Sensitive data transmitted as public information on a blockchain is a bug, not a feature.”Bar-Geffen highlighted the protocol’s ability to prevent sensitive data from being exposed to competitors, partners and clients engaged in transactions on Coti’s chain. The CEO elaborated on how garbling protocols differentiate Coti v2 by facilitating transactions and smart contract executions where details remain private between involved parties.The Coti CEO emphasized the critical role of such privacy features in decentralized finance applications, where transaction confidentiality is as essential as transaction integrity. Coti claims that other platforms focusing solely on anonymity for privacy may face regulatory challenges and might not provide a compliant foundation for the broader ecosystem.Targeting specific use casesCoti envisions its protocol catering specifically to use cases demanding advanced privacy provisions in finance and healthcare. Currently designed for enterprises, Coti’s existing protocol enables the management of blockchain-based products such as custom-branded tokens, wallets, website integrations and fiat on-and-off ramps.In a blog post on Medium, the blockchain startup outlined that in addition to privacy, v2 will enable smart contracts, EVM compatibility and Solidity programming, alongside the features currently offered by v1. Notwithstanding these new features on the v2 product, the company confirmed to The Block that in respect of Coti’s original Cardano-based product, “Coti’s work with Cardano continues. We have a project built there called Djed, and that will continue to remain on Cardano.” Djed is an ADA-backed stablecoin pegged to the U.S. dollar.The anticipated release of Coti v2’s developer net in the second quarter of 2024 signals a move towards realizing the potential in advancing Ethereum’s privacy standards. As a layer-1 protocol, Coti presently contributes to Web3 applications by providing digital infrastructure, including tools for wallets, tokens and payment modules, with a total value locked of $31 million.The upcoming integration as a privacy-centric layer-2 positions Coti as a key player in enhancing Ethereum’s capabilities and fostering a more secure and confidential blockchain experience.

South Korea’s retail-heavy crypto market is losing momentum ahead of broader institutional access to trading. Data from the Financial Services Commission (FSC) and the Financial Supervisory Service (FSS), cited by Financial News, shows that in the first half of 2025, Korean-won balances held at the country’s five licensed fiat-to-crypto exchanges sank 42% to 6.2 trillion won ($4.4 billion), signaling less dry powder waiting on the sidelines for trading. Only five platforms are permitted to support won-denominated trading, and the drop in parked cash underscores a broader cooling. By the end of June, the Korean crypto market cap stood at 95.1 trillion won ($67.5 billion), down 14% from six months earlier. The global market also contracted, but the decline was more modest at about 7% over the same period.Photo by Y K on UnsplashTrading slows but retail base expandsTrading activity eased as well. Average daily volumes across 25 domestic virtual asset service providers (VASPs) fell 12% to 6.4 trillion won ($4.5 billion) in the first half. Paradoxically, the number of market participants climbed 11% to 107.7 million across those platforms. Nearly all were individuals, as only 220 were institutions, reflecting long-standing restrictions on institutional won trading. That retail skew has consequences. Data submitted by the FSS to a lawmaker, cited by Digital Asset, reveals that the top 10% of users by trading volume accounted for roughly 90% of activity at the five fiat on-ramps. By exchange, the figures were Upbit (89.36%), Bithumb (97.97%), Coinone (97.54%), Korbit (97.52%), and Gopax (97.95%).  Market lawyers warn that this concentration heightens manipulation risk. Lee Seung-min of SEUM Law Firm said volatility may be more pronounced in tokens listed only on Korean venues, but added that deeper institutional participation could help reduce such volatility and support longer market cycles.  Regulators are inching in that direction. Earlier this year, authorities allowed universities and nonprofits to sell their crypto holdings. By year-end, the FSC plans to let about 3,500 publicly traded companies and professional investors, excluding financial institutions, open accounts at the licensed platforms for trading. Exchanges pour cash into promotionsWhile regulators are preparing to bring more institutional players into the fold, exchanges continue their long-running effort to draw in retail users. Another Digital Asset report noted that from 2023 through July 2025, promotional outlays by the five won-enabled platforms totaled 190.3 billion won ($135 million). Bithumb alone accounted for 180.3 billion won ($128 million), far outspending Upbit (9.4 billion won), Coinone (1.7 billion won), Korbit (1.6 billion won), and Gopax (100 million won). The gap suggests Bithumb, which ranks second in market share, has pursued a particularly aggressive approach to expand its customer base. Taken together, the numbers depict a subdued market, with less capital parked on exchanges and lighter trading while activity remains heavily concentrated among a small cohort of traders. Even so, the expanding base of individual accounts represents a bright spot, underscoring the market’s continued dependence on retail investors. If policymakers follow through on opening the door to a broader set of corporate and professional players later this year, Korea’s crypto landscape could shift from retail-driven fluctuations toward steadier, institution-supported flows. 

South Korean authorities will require homebuyers to disclose funds originating from cryptocurrency sales, a move aimed at increasing transparency in the nation's tight real estate market. The new rule is part of a wider government effort to address housing affordability, which is particularly pronounced in Seoul, and to integrate digital assets into its regulatory framework. The change, announced on Sept. 7 as part of new housing supply measures, will alter the mandatory funding plan submitted during property transactions. Proceeds from digital assets will be listed as a distinct category, similar to funds from stocks or bonds. Officials are also expanding loan disclosure requirements to include business loans and overseas borrowing, closing potential financing loopholes.Photo by Traxer on UnsplashImpact of asset volatility on property valuesThe policy follows growing evidence that volatility in assets like cryptocurrency can spill over into the property market. A 2024 study cited by Maeil Business Newspaper highlighted that both the COVID-era stock rally and Bitcoin's 2023 price surge had a discernible impact on housing values. According to Yu Jung-suk, a professor at Dankook University, apartments in Seoul's affluent Gangnam district are particularly sensitive to fluctuations in Bitcoin and the KOSDAQ index. He noted that high-profile property acquisitions by young crypto investors, even if few in number, can significantly sway market sentiment. Professor Yu suggested that regulators may need more comprehensive tools to manage the risks connecting different asset classes. The government's new measures also seek to cool the capital's housing market, where prices have continued to rise despite a slowdown in growth. In contrast, prices in areas outside Seoul have been declining since 2022. To address the supply-demand imbalance, officials plan to begin construction of 1.35 million new homes in the Seoul metropolitan area between 2026 and 2030. Stablecoin regulation and CBDC trials advanceBeyond real estate, officials are developing a formal regulatory structure for stablecoins. The Presidential Commission on Policy Planning is reportedly considering a model where a consortium of banks and fintech firms would be granted rights to issue a won-pegged stablecoin. Supervision for this new system would fall to a proposed Financial Stability Council, a body intended to serve as a central coordinator for financial policy, comprising the finance ministry, the Bank of Korea, and other regulators. The initiative aims to combine the stability of the traditional banking sector with the innovation of non-bank financial companies. The evolving regulatory environment is attracting attention from global industry leaders. Executives from Tether, the issuer of the USDT stablecoin, met with Shinhan Financial Group CEO Jin Ok-dong in Seoul on Sept. 8. While Tether representatives stated they were monitoring the regulatory climate, they confirmed no specific business plans were discussed. Separately, the Bank of Korea is moving forward with digital currency experiments. In partnership with government agencies and six major commercial banks, the central bank will launch a pilot program to test the use of a digital currency for distributing state subsidies and vouchers.