Shield: The KiloEx Attacker Tagged Address has returned approximately 1.4 million USDT to KiloEx

According to Bloomberg, South Korea’s roughly $4 trillion stock market has become a key window for fund managers in London, New York and Tokyo to gauge global AI risk appetite. Stock fluctuations in Samsung Electronics and SK Hynix continue to ripple through global chip stocks, and some Japanese traders have added the KOSPI index to their daily watchlists. The correlation between South Korea’s market and U.S. tech stocks has grown significantly. Bloomberg data shows the 60-day correlation coefficient between the KOSPI index and the Nasdaq 100 has risen to 0.46, near a two-year high—about three times the 0.16 average over the past five years. Last week, South Korea’s market fell nearly 9% at one point amid renewed doubts about AI demand prospects, with the selloff later spreading to Wall Street; SK Hynix’s American depositary receipts dropped 9.3%. However, high-leverage trading in South Korea has amplified volatility. The KOSPI index has fallen 25% from its June peak, erasing roughly $1 trillion in market capitalization, with both Samsung Electronics and SK Hynix down at least 30%. South Korea recently suspended the launch of new single-stock leverage trading products to curb speculation and market volatility. Even so, the KOSPI index is still up 62% year-to-date, ranking among the top of major global markets. Given Samsung Electronics and SK Hynix’s critical positions in the global memory chip supply, multiple institutional players believe that as long as the AI rally persists, South Korea’s stock market will remain an important barometer for global AI and semiconductor trading.

Ostium has released an update on its security incident. Its liquidity provider fund pool was attacked on July 15, resulting in a loss of 23,752,746 USDC. Preliminary investigations show that the attacker breached the off-chain infrastructure supplying price data to the protocol, submitted falsified illegal price reports, and extracted artificially generated profits from the fund pool by rapidly opening and closing multiple large positions. Ostium stated that trader collateral is stored in an isolated smart contract and was not affected by the incident, with all trading positions remaining open. The team suspended trading and froze all trading contracts within 60 minutes of the first attack transaction. Currently, Ostium is collaborating with Mandiant, zeroShadow, Collisionless, SEAL 911, and law enforcement agencies, and coordinating with exchanges, bridge contracts, and stablecoin issuers to advance the investigation. The engineering team is focused on fixing and strengthening relevant infrastructure to support the safe resumption of trading. Ostium said it will provide at least 24 hours’ advance notice before unfreezing trading contracts. After trading resumes, existing positions will be marked at the price when they reopen, unaffected by price fluctuations during the suspension period. Supporting affected liquidity providers and safely resuming trading remain the top priorities.

Glassnode’s lead research analyst CryptoVizArt noted in a post that the short-term holder cost basis distribution heatmap shows a new round of coins shifting to new buyers in the $62,000–$65,000 range during Bitcoin’s rebound from $57,000. He pointed out that this structure has two sides: on one hand, buyers’ active accumulation during the rally could form a new cost basis support, paving the way for Bitcoin to test levels of $66,000 and higher. On the other hand, this round of coin accumulation is heavily concentrated toward the end of the local rebound. If Bitcoin fails to break above $66,000 convincingly, the risk of the market forming a short-term top will rise. $66,000 is the key short-term level to judge the above two scenarios.

MetaMask developer Consensys has uncovered that a North Korean hacker infiltrated the MetaMask team under a false identity for roughly a month, contributing to core wallet code development. Operating under the name "Tyler Knapp", the individual joined as a consultant via a contractor, with a GitHub account under the handle imyugioh. Their code commits spanned from March 9 through April, and the hacker worked on sections of code related to cryptocurrency-fiat currency transfers. Upon identifying the risk, Consensys immediately cut off the hacker’s access, instructed employees to pause product releases and avoid contact with the individual, and reported the incident to law enforcement. General Counsel Matt Corva stated that investigations confirmed no assets or data were misappropriated, no malicious code was deployed, and user funds and security remained uncompromised. The company is now re-evaluating its contractor background verification procedures. TRM Labs noted that developer work environments have emerged as a critical entry point for attackers to target crypto firms’ keys and withdrawal approval systems. This follows a prior finding by an Ethereum grant project that identified 100 suspected North Korean IT professionals across 53 crypto projects.

According to Onchain Lens monitoring, the largest ETH short seller, 'pension-usdt.eth', holds 50,000 ETH short positions valued at roughly $93.3 million, with an unrealized loss of approximately $8.31 million as of now. The whale has posted a cumulative historical profit of $35.6 million.

According to CNBC, the semiconductor sector has posted sharp declines this week. The Philadelphia Semiconductor Index fell 8% week-over-week and 17% month-over-month, potentially ending its three-month consecutive rally. Roundhill DRAM ETF dropped 17% this week, while the VanEck Semiconductor ETF fell 7%. UBS projects that earnings of Philadelphia Semiconductor Index constituents will rise 92% this year, with an additional 40% growth in 2027. Ulrike Hoffmann-Burchardi, UBS Global Head of Equities, said demand for computing power remains higher than available supply, and supply chain capacity constraints are unlikely to ease significantly in the short term, so the firm remains bullish on the semiconductor sector. Barclays’ trading desk noted no signs of panic in current semiconductor trading, adding that recent sell-offs resemble passive deleveraging rather than a full-scale investor exodus. WSTS data shows the global semiconductor market is forecast to grow 90% in 2026 and another 27% in 2027. Industry sales rose 106% year-over-year in April, accelerating to 119% in May. However, Deutsche Bank strategist Maximilian Uleer expressed concerns about the industry outlook and its high market weighting. Wells Fargo’s Ohsung Kwon pointed out that semiconductor market sentiment has seen one of the sharpest declines in history over the past four weeks.