WuBlockchain’s daily crypto news selection highlighted five developments spanning South Korea market expansion, a Singapore-approved acquisition, Bitcoin market structure, Solana-based USDC issuance and a new macOS malware threat.
Optimism teams up with Dunamu, Toss and DB Securities in South Korea
Ethereum Layer 2 infrastructure project Optimism will work with Upbit operator Dunamu, fintech platform Toss and DB Securities to expand in the South Korean market. The cooperation includes upgrading and internationalizing Dunamu’s blockchain GIWA, validating won-denominated digital finance infrastructure, and commercializing Jeju Island smart agriculture, livestock assets and Korean intellectual property as tokenized securities and real-world assets, or RWAs.
SBI Holdings gets MAS approval to take control of Coinhako parent
Japan financial group SBI Holdings said it has received approval from the Monetary Authority of Singapore, or MAS, and on July 16 obtained a majority stake in Holdbuild, the parent company of Singapore crypto asset platform Coinhako, through a capital injection and the purchase of shares from existing shareholders. SBI said Holdbuild will now be included in its consolidated financial statements. The transaction value was not disclosed.
Hako Technology, a Coinhako unit, holds a Major Payment Institution license from MAS. SBI said it plans to integrate Coinhako’s customer base and regional network more closely and explore synergies with its yen stablecoin JPYSC, tokenization, on-chain finance and cross-border transaction businesses.
Coinbase Bitcoin premium index stays negative for 60 straight days
The Coinbase Bitcoin premium index has remained in negative territory for 60 consecutive days, from May 19 to the present, with the latest reading at -0.1025%. WuBlockchain said the previous longest negative stretch this year ran for 40 days, from Jan. 16 to Feb. 24, which had been the longest streak since the indicator was introduced.
The current run has also exceeded the roughly 30-day negative stretch seen during the “1011 crash,” according to the digest. Historical data shows prolonged negative premiums have often appeared alongside an exit of U.S. institutional capital, a pattern the report said warrants caution over short-term pullback pressure.
Solana USDC issuance in 2026 reaches 70.01 billion
Circle minted another 500 million USDC on Solana. That brought cumulative USDC issuance on the chain in 2026 to 70.01 billion.
SlowMist details new macOS malware targeting Telegram and crypto wallets
SlowMist said in a technical analysis that it identified a new information-stealing malware strain targeting macOS. The malware can steal local session files from Telegram Desktop and Telegram for macOS, then restore an already authorized session on another Mac without requiring the victim to re-enter a phone number, verification code or 2FA password.
SlowMist said the malware also collects data from Keychain, browsers, Apple Notes and multiple crypto wallets, which can then be used in offline attempts to decrypt wallet databases. It can also replace legitimate Ledger and Trezor desktop applications with phishing programs built on WKWebView to trick users into entering seed phrases.
SlowMist advised users who may have been infected to terminate existing Telegram sessions and move any potentially exposed wallet assets to addresses generated with a new seed phrase.