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According to The Information, Anthropic and OpenAI have both experienced security incidents, raising market concerns about the safety of AI models themselves.Currently, Anthropic is investigating potential unauthorized access to its Claude Mythos model by users. Almost simultaneously, OpenAI was also reported to have accidentally exposed several unreleased models in its Codex application. Industry opinions indicate that these vulnerability incidents have intensified scrutiny on the security governance capabilities of AI companies and reflect that the security systems of current AI technology still need improvement as it rapidly develops. Analysts believe that even AI model providers that focus on cybersecurity capabilities face significant security challenges themselves. As AI is gradually used to defend against cyberattacks, issues related to platform security and access control have also become critical risk points.

According to Cointelegraph, local police in Spain seized two cryptocurrency cold wallets containing approximately 400,000 euros (about 467,000 dollars) in assets during an operation against illegal comic distribution platforms.The operation was carried out by the Almería police in Spain, who have arrested three suspects and dismantled what is known as the country's largest Spanish-language piracy comic website. It is reported that the platform has been providing free pirated content since 2014, primarily profiting through advertisements, with total revenue exceeding 4 million euros over the past decade. Notably, the cold wallets involved were hidden inside a thermometer in the wall. The police have not yet disclosed whether they have obtained the relevant private keys or access to the funds.

Market news: Google plans to invest up to $40 billion in Anthropic.

According to Jinshi reports, U.S. Treasury Secretary Yellen stated that the dominance of the dollar and its status as a reserve currency have further strengthened.

According to Onchain Lens monitoring, a certain whale holds 2.2 million TRUMP (worth 6.29 million USD), deposited the token into Binance, and realized a loss of 398,000 USD after holding it for 1 month.

The cryptocurrency trading platform SuperEx announced that it will soon launch Canton (CANTON) in the innovation zone and open the CANTON/USDT spot trading pair. Trading will officially start on April 24, 2026, at 11:00 Beijing time (03:00 UTC), and the deposit and withdrawal channels will soon be opened.The official stated that with the launch of spot trading, CANTON will also be included in the margin support range for all-currency contracts, allowing users to use it directly as margin assets for contract trading.It is reported that the Canton Network is a public, permissionless blockchain network designed specifically for institutional finance, aiming to integrate privacy, compliance, and scalability. The network is managed by the Canton Foundation and supported by several leading global financial institutions, enabling instant, secure synchronization and settlement of various asset classes on its shared infrastructure powered by its native token, Canton Coin.

According to on-chain analyst Onchain Lens, Antalpha deposited 1,950 XAUT (worth approximately $9.18 million) into Cobo, and the related funds subsequently flowed to Binance, with a connection to Metalpha, suspected to be sold through over-the-counter (OTC) channels. Currently, Antalpha still holds 46,348 XAUT, worth approximately $218 million.

According to BBX data, the first public collapse case in the corporate digital asset reserve sector occurred yesterday, and on the same day, the crypto industry jointly issued the largest legislative mobilization of the year. Several listed companies disclosed their latest reserve actions, with the core dynamics as follows:Satsuma Technology Plc (LSE: $SATS) reported by Bloomberg on April 23 that digital asset investment firm Pantera Capital (holding approximately 6.7%) is pressuring the company, along with other shareholders, to liquidate all 646 BTC (current market value approximately $50 million) and return the cash to shareholders. The company's executive chairman, Ranald McGregor-Smith, confirmed that they have received requests from shareholders for capital return, stating that they are "evaluating options."DeFi Development Corp. (NASDAQ: $DFDV) announced that its Treasury Accelerator Program has completed a strategic equity investment in Japanese listed company Allied Architects, Inc. (TSE: 6081), marking the company's first entry into the Asian market. As of recently, the company holds approximately 2.2 million SOL (market value approximately $195 million), using "SOL per Share (SPS)" as a core performance indicator.H100 Group AB (OTCMKTS: $HOGPF) upgraded the letter of intent (LOI) signed in March to a binding share purchase agreement, intending to acquire a total of approximately 2,450 BTC reserves from Moonshot AS and Never Say Die AS; upon completion, the company's BTC holdings are expected to rise to approximately 3,501 BTC, with the transaction structure being all-stock consideration (BTC for BTC, no cash involved). Existing shareholders are expected to hold about 30% after completion, with the delivery expected to be completed by August 2026.Remixpoint, Inc. (TSE: 3825) recently increased its holdings by 20.0312 BTC (approximately $1.57 million), bringing its total BTC holdings to 1,431.33 BTC, with a current paper profit of approximately $21.28 million; the company also plans to purchase approximately $3.13 million in additional crypto assets.

According to official news, OpenAI has officially released GPT-5.5. This model has made significant progress in intelligent agent programming, computer usage, and scientific research, achieving an accuracy of 82.7% in the Terminal-Bench 2.0 test. GPT-5.5 has higher reasoning efficiency and consumes fewer tokens while maintaining the same latency as GPT-5.4.Currently, GPT-5.5 has been pushed to ChatGPT Plus, Pro, and enterprise users, with the API version set to launch soon, priced at $5 per million input tokens and $30 per million output tokens. Additionally, GPT-5.5 Pro, designed for high-difficulty tasks, has also been released simultaneously.

According to information from the Governance Forum, Bybit's public chain Mantle plans to provide a loan of 30,000 ETH to Aave to address the bad debt risk caused by recent security incidents.According to crypto analyst Yu Jin @EmberCN, the currently confirmed rescue fund size approximately covers a gap of 43,500 ETH.

Supported by Paradigm, Succinct Labs has released the iPhone camera app ZCAM, which generates "digital fingerprints" for photos and videos using cryptographic technology to address the forgery risks posed by AI-generated content.ZCAM can sign images at the moment of capture, creating an immutable record and binding the content to the capturing device, allowing users to independently verify whether the material comes from a real device, whether it has been tampered with, or whether it was generated by AI. Unlike solutions that rely on AI detection, Succinct chooses to start from the hardware layer of the device, generating a unique cryptographic signature for each shot. The company states that existing AI detection tools are prone to failure, while this solution can enhance the reliability of authenticity verification. Similar projects include World, which aims to reduce risks by distinguishing between real human and AI identities.

CryptoQuant analyst MorenoDV_ tweeted that if Bitcoin can rise above and hold the $80,000 mark, this position will turn from resistance to support; conversely, if it encounters rejection and falls back, it will confirm $80,000 as a significant selling pressure area, potentially extending the adjustment period into the second quarter.Currently, the realized price for BTC ETF investors is about $76,400, which is close to the spot price (around $76,300), marking the first time since January 30 that it has approached the breakeven point; short-term holder whales have a realized price around $79,600 and are currently facing an unrealized loss of about $9.4 billion.MorenoDV_ pointed out that historically, when these trapped funds are finally released, it often triggers significant selling pressure. Bitcoin is currently fluctuating in the $76,000-$80,000 range, where $80,000 is not only an important psychological level but also a common breakeven and release threshold for these two major groups.

The on-chain analysis platform Santiment tweeted that six days after the Kelp event outbreak, there were obvious signs of "refugee trade" in the market.The Spark token SPK skyrocketed from $0.029 to $0.058 within 48 hours, an increase of over 100%. Meanwhile, whale transactions (over $100,000) surged from an average baseline of about 30 per day to 183 today.In contrast, the price of the AAVE token continues to decline, currently hovering around $92, even though Bitcoin had previously broken through $79,000 earlier this week.Santiment pointed out that this event did not solely cause destruction but led to a reallocation of funds— a liquidity crisis for one protocol turned into a bull market for another protocol.Note: "Refugee trade" is a metaphorical term in the crypto/DeFi space, specifically referring to the phenomenon where funds flee in large amounts from damaged or high-risk protocols, similar to refugees, and move to another protocol that is relatively safe and lower risk.

According to The Block, JPMorgan analysts stated that the frequent security incidents in DeFi and the stagnation of total locked value (TVL) in ETH terms continue to limit institutional interest in DeFi. The report mentioned that a recent cross-chain bridge attack related to Kelp DAO led to a loss of approximately $20 billion in DeFi TVL within a few days. The attackers minted about $292 million in unsecured rsETH and borrowed real ETH on Aave using it as collateral, resulting in approximately $230 million in bad debt. JPMorgan also pointed out that after security incidents, users tend to turn to Tether's USDT for safety.

Coinbase stated that it is optimizing the rule creation process in its anti-fraud system by integrating machine learning models with a rules engine, achieving more efficient risk management. It also proposed a dual-track strategy of "models responsible for long-term defense, rules responsible for rapid response," and built a unified framework to create a feedback loop between the two: rules are used to capture new types of fraud and train the model in reverse, thereby continuously enhancing overall defense capabilities.In terms of specific optimizations, Coinbase has transformed the previously manual rule creation process into a data-driven and automated recommendation system by restructuring data, automating schema evolution, and introducing notebook-based analytical tools, significantly improving efficiency. Among these improvements, the performance of rule backtesting has increased by more than 10 times, and the overall response time has been reduced from several days to a few hours. Additionally, the new system uses machine learning to recommend parameters, helping to reduce false positive rates while combating fraud and minimizing the impact on normal users. Coinbase indicated that the next step will be to advance event-driven automatic rule generation and explore the "one-click conversion" of efficient rules into model features, further moving towards an automated risk management system.

The local police in Spain seized two cryptocurrency cold wallets containing approximately 400,000 euros (about 467,000 dollars) in assets during an operation against illegal comic distribution platforms.The operation was carried out by the Almería police in Spain, who have arrested three suspects and dismantled what is known as the country's largest Spanish-language piracy comic website. It is reported that this platform has been providing free pirated content since 2014, primarily profiting through advertisements, with total revenue exceeding 4 million euros over the past decade. Notably, the cold wallets involved were hidden inside a thermometer in the wall. The police have not yet disclosed whether they have obtained the relevant private keys or access to the funds.

Investors including Pantera Capital Management are pushing the UK Bitcoin reserve company Satsuma to sell its $50 million Bitcoin reserve.Satsuma shifted to an "AI-driven" Bitcoin reserve strategy in August 2025, successfully raising £164 million (approximately $221 million) through convertible loan notes, led by ParaFi Capital, with participation from Pantera, Digital Currency Group (DCG), Kraken, Arrington Capital, and others. It is reported that Satsuma confirmed that some shareholders "requested a return of capital," but did not disclose the identities of the specific shareholders. Satsuma's Executive Chairman Ranald McGregor-Smith stated in an email that the company is exploring options to facilitate these requests while protecting the interests of all shareholders.

Former Jump Trading senior quantitative researcher Yiming Zhang has received startup funding support from hedge fund giant Millennium Management after leaving the firm and will conduct business as an external manager in the future.Yiming Zhang worked at Jump for 17 years and was one of the key members of the core strategy department. Due to non-compete clauses, his new role is expected to officially start after the restriction period ends. Industry insiders point out that Millennium Management has been expanding its footprint in recent years by providing funding support to external teams, becoming one of the important "incubators" in the hedge fund sector.

According to on-chain analyst Onchain Lens, a dormant whale address that has been inactive for 1.6 years has purchased 3,000 ETH at a price of $2,333, with a total value of approximately $7 million.The address currently still holds 3 million USDC and may continue to increase its ETH holdings.