ChainCatcher news, according to OnchainLens monitoring, a certain whale sold 893,123 FET today at a price of $0.465 each after holding for 4 months, exchanging for 222 ETH (approximately $416,000), resulting in a loss of $2.29 million.This whale previously purchased a total of 1.49 million FET for $2.98 million, acquiring them by selling ETH and WOJAK. Currently, it still holds about 600,000 FET, worth approximately $274,000 at the current price.

ChainCatcher news, according to Scam Sniffer monitoring, a user lost $226,255 worth of pufETH tokens due to signing a phishing "permit" signature.Such phishing signature attacks are becoming increasingly common in the decentralized finance space, and users are advised to exercise extra caution before signing any blockchain transactions, especially those involving asset authorization.

ChainCatcher message, crypto KOL He Bi stated on social media that the on-chain brokerage project WhiteRock is suspected to be launched by the ZKasino team, and users should pay attention to security.It is reported that ZKasino previously Rugged users of a total of 10,500 ETH (worth over 30 million USD at that time).

ChainCatcher news, according to TechInAsia, Atlanta-based surveillance technology company Flock Safety has completed a $275 million funding round led by Andreessen Horowitz (A16z), with the company valued at $7.5 billion. Other participants in this round of investment include Greenoaks Capital and Bedrock Capital.So far, Flock Safety has raised over $950 million in total funding. The company plans to develop domestically manufactured drones in the U.S. by 2025 and build a 100,000 square foot manufacturing facility in Georgia. The company focuses on providing AI-based security monitoring solutions, primarily targeting government and enterprise clients.

ChainCatcher message, Hyperliquid posted on social media, "Regarding the issue of 'Hyperliquid 50x leverage whale' (0xf3f4 user) ETH long position: Firstly, to clarify: there was no protocol vulnerability or hacking incident.The user held unrealized profit and loss (PNL), made a withdrawal, which led to a reduction in margin, and was subsequently liquidated. Ultimately, the user made a profit of approximately $1.8 million, while HLP lost about $4 million in the past 24 hours. Currently, HLP's historical cumulative PNL remains at approximately $60 million. Please note that HLP is not a risk-free strategy.To increase the maintenance margin requirements for large positions, we will adjust the maximum leverage for BTC and ETH, updating them to 40x and 25x respectively. This will provide better cushioning for the fallback liquidation of large positions."

ChainCatcher news, according to the official Huobi HTX website, Huobi HTX has updated the Merkle tree asset proof data for March 2025. The data shows that the reserve ratios of major mainstream assets have fully exceeded 100%, ensuring the long-term protection of user asset security.The specific updated reserve ratios are: BTC (101%), ETH (101%), TRX (105%), USDT (102%), HTX (105%), XRP (101%), DOGE (100%), SOL (101%).As one of the earliest platforms in the industry to adopt the Merkle tree verification mechanism, Huobi HTX has publicly disclosed reserve data for 29 consecutive months, continuously strengthening transparent management. Users can visit the "Assets - Reserve Proof Report" page on the Huobi HTX official website at any time to view the monthly updated reserve proof reports and understand the platform's financial status in real-time.By regularly disclosing reserve data, Huobi HTX continuously enhances transparency and security standards, solidifying the foundation of user trust while promoting the healthy and orderly development of the industry. The platform's financial strength is robust, consistently fulfilling its long-term commitment to safeguarding user asset security.

ChainCatcher news, Tether CEO Paolo Ardoino stated on social media that Tether is "helping to secure U.S. debt."Currently, most of Tether's (USDT) issued reserves are backed by U.S. Treasury bonds, and the market generally believes that the scale of its holdings has reached tens of billions of dollars, making it one of the important buyers of U.S. short-term Treasury bonds.

ChainCatcher news, according to Spot On Chain monitoring, DWF Labs has been active for the first time in five months, depositing 3 million FET into Bitget, approximately 1.82 million USD. These tokens came from the 10 million FET transferred by the Fetch.ai Foundation on September 3, 2024, when the price was 1.185 USD.As of now, DWF Labs has deposited a total of 5 million FET into Binance and Bitget, with an average price of 0.987 USD, down 16.7% from the initial price. In addition, it still holds 5 million FET, valued at approximately 3.04 million USD.Previous news, DWF allegedly transferred 2.5 million AXL to the Axelar team address, approximately 1.11 million USD.

ChainCatcher news, according to Jinshi Data, Buffett made a rare comment on Trump's tariff issues, stating that punitive tariffs could trigger inflation and harm consumers' interests. "In fact, we have a lot of experience with tariffs. To some extent, tariffs are a form of warfare. In the long run, tariffs are taxes on goods."

ChainCatcher message, according to Infini founder Christian's post on X, "Of the 50 million dollars stolen, seventy percent belongs to large friends I know personally. I have already communicated with each of them and will personally bear the possible losses and settle privately. The remaining funds will be reinvested into the infini vault before next Monday, and everything will continue as usual. The funds are ready, and I will respond to any withdrawal requests in the meantime, so please rest assured.I apologize for the need for some time to upgrade and restart the business; everything will proceed under the premise of ensuring the absolute safety of the funds."

ChainCatcher message, according to SoSoValue data, the net inflow for Ethereum spot ETFs last week (Eastern Time from February 18 to February 21) was 1.61 million USD.The Ethereum spot ETF with the highest net inflow last week was Fidelity's Ethereum ETF FETH, with a weekly net inflow of 26.32 million USD. Currently, FETH's historical total net inflow has reached 1.54 billion USD. The Ethereum spot ETF with the highest net outflow last week was Grayscale's Ethereum Trust ETHE, with a weekly net outflow of 15.79 million USD. Currently, ETHE's historical total net outflow has reached 4 billion USD.As of the time of publication, the total net asset value of Ethereum spot ETFs is 9.981 billion USD, with an ETF net asset ratio (market cap relative to total Ethereum market cap) of 3.14%. The historical cumulative net inflow has reached 3.154 billion USD.

ChainCatcher news, according to Jinshi reports, Berkshire Chairman and CEO Buffett emphasized in this year's shareholder letter that despite the company holding a large amount of cash, most of the funds are still invested in stocks, and this strategy will not change. Although the investment in listed stocks has decreased from $354 billion to $272 billion, the value of unlisted equity holdings has increased and far exceeded the listed portfolio.Buffett stated that Berkshire will always allocate most of its funds to stocks, primarily U.S. stocks, even though many companies have significant international operations. He reiterated that Berkshire does not prefer holding cash over excellent businesses.In addition, Berkshire continues to increase fixed-rate borrowings denominated in yen, but has not followed a fixed pattern. Buffett stated that there is no prediction regarding future foreign exchange rates, aiming to maintain a neutral position in terms of currency. Notably, this year's shareholder letter did not mention cryptocurrencies.

ChainCatcher news, Huobi HTX global advisor and TRON founder Justin Sun shared his profound insights on exchange security in a Twitter Space themed "Industry Crisis, How to Cope Together? Is There an Optimal Solution for Security in the Crypto Industry?"He stated that it is evident that hacking methods are continuously evolving, shifting from hot wallet attacks to multi-signature wallet attacks. Exchanges must remain vigilant at all times and dynamically enhance their security measures. In his view, security is a "top-level project," and having a sense of awe and a willingness to learn are key to maintaining security. One must always be humble, always vigilant, and always learning, which ultimately leads to everlasting security. Additionally, security is akin to personal health management; one cannot rely entirely on external guarantees. The exchange's own high regard for and awareness of security are essential to effectively prevent risks and remain undefeated in long-term development.Justin Sun introduced that for Huobi HTX, user security is very important. Therefore, they always follow up on crypto security incidents promptly, understanding the principles and methods of hacker attacks to implement effective prevention. At the same time, Huobi HTX has also collaborated with numerous white hat teams to conduct offensive and defensive testing, enhancing their security capabilities.

ChainCatcher news, according to Jinshi reports, Buffett published his annual shareholder letter, in which he mentioned that the value of tradable stocks held last year decreased from $354 billion to $272 billion, but the value of non-listed equity holdings increased and remains far above the value of the tradable stock portfolio. We will always invest the vast majority of their funds in stocks—mainly U.S. stocks, although many of these companies have significant international operations. Berkshire will never be more inclined to hold cash equivalents and give up holding equity in quality businesses, whether controlling or partial stakes.In 2024, Berkshire's performance exceeded expectations, despite 53% of its 189 operating companies reporting a decline in earnings. Due to the increase in U.S. Treasury yields, there was a significant increase in holdings of these highly liquid short-term securities, resulting in a foreseeable substantial increase in investment income.Berkshire has been continuously increasing its borrowings denominated in yen, but not following any fixed pattern. All borrowings are at fixed rates, with no "floating rate" borrowings. There is no forecast for future foreign exchange rate trends, thus striving to maintain a nearly neutral position in terms of currency.

ChainCatcher news, according to Binance's announcement, the leverage and margin tiers for the FETUSDT, POLUSDT, BANUSDT, and OMUSDT perpetual contracts will be adjusted on February 21, 2025, at 17:30 (Beijing time).The announcement states that this adjustment will affect existing positions, and due to the updates in leverage and margin tiers, grid trading strategies may expire and become ineffective. Binance advises users to make the necessary adjustments in a timely manner before the changes take effect.