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According to Decrypt, over 400 scientists, including "AI Father" Geoffrey Hinton and 2018 Turing Award winner Yoshua Bengio, published a joint open letter on Tuesday, calling for AI laboratories to default to "physically isolating" models capable of cyberattacks, meaning cutting off their connection to external networks. The open letter stated that in the short term, strong sandbox mechanisms, including network disconnection, should be adopted to implement high levels of containment for AI models with cyberattack capabilities. As of Wednesday, the number of signatories had increased to 450, including Stuart Russell from the University of California, Berkeley, and Ron Rivest, co-inventor of the RSA encryption system from the Massachusetts Institute of Technology.Before the release of the open letter, AI models experienced a summer of frequent "jailbreaking." In July, OpenAI admitted that GPT-5.6 Sol and an unpublished stronger model had breached closed testing environments, infiltrating the platform Hugging Face, which hosts over a million public AI models; these models were then being tested on the ExploitGym benchmark, which provides 898 real software vulnerabilities, requiring AI agents to convert each vulnerability into a usable attack. Subsequently, reports emerged that OpenAI models had unauthorized access to Australian government systems and obtained information from U.S. federal agencies.

EntropyLab has released the first candidate version of its self-contained Bitcoin key and wallet calculator v1.0rc1. The application runs as a single HTML file, requiring no internet connection and does not generate entropy on its own; users can provide their own entropy to calculate keys and wallets in a completely offline environment.The tool supports multi-signature, PSBT, BIP-85, Silent Payments, vanity addresses, watch-only wallet exports, and random number analysis. This version is reproducible and can be verified through the signatures of four independent signers; the team recommends that users download and verify the file before transferring it to an isolated network computer. The official version v1.0 will be released after the candidate version testing is completed.

DeepSeek has adjusted the offline schedule for V4 Pro. Previously, the official announcement stated that once V4.1 Flash officially goes live, all V4 Pro requests would be automatically switched to the new model; the latest notification changes this to September 14 at 12:00, when V4 Pro will be taken offline, and all requests will be switched to V4.1 Flash, with billing based on Flash prices.The previous automatic replacement plan has sparked opposition from many developers. Many developers are concerned that their carefully tuned Prompts, Agents, and production processes around V4 Pro will encounter issues due to the backend directly switching models. Some have suggested that DeepSeek retain the old model for a period of time, allowing users to decide when to migrate.

Tether is expanding its business beyond stablecoins by launching an open-source AI translation model that can run offline on smartphones and laptops.These models support 19 African languages, and Tether positions this technology for use in education, healthcare, and other areas with limited internet access.

Core Lightning maintains that node operators should shut down their nodes unless they upgrade to an unreleased version. This warning was spread via Discord and amplified by Cashu protocol developer Calle, who stated that there is a serious vulnerability. The fix binary has not yet been released, and the details of the vulnerability are under a two-week confidentiality period.This is the fourth security alert for Bitcoin infrastructure in four weeks. Previously, a Coldcard firmware vulnerability led to approximately $114 million in BTC being stolen, and issues have also arisen with Boltz and BTCPay Server. The CLN team stated that they have received multiple AI-generated CVE reports in the past 10 days and are intensifying verification and fixes.

According to the announcement from the Shanghai Stock Exchange, Yushu Technology has released the announcement of the results of its initial public offering and listing on the Sci-Tech Innovation Board, as well as the prospectus for the initial public offering and listing on the Sci-Tech Innovation Board. It disclosed that the online and offline subscription payment work has been completed, and after the adjustment mechanism was activated, the final number of shares issued offline was 22,650,148 shares, accounting for approximately 70% of the number of shares issued after deducting the final strategic placement. The final number of shares issued online was 9,707,000 shares, accounting for approximately 30% of the number of shares issued after deducting the final strategic placement.In addition, before this issuance, the actual controller of Yushu Technology, Wang Xingxing, directly held 86,714,964 shares of the company, controlling a total of 34.763% of the shares. Through the arrangement of special voting rights, the proportion of voting rights controlled by Wang Xingxing in the company was 68.7816%. After this issuance, the proportion of voting rights controlled by Wang Xingxing will decrease to no more than 65.309%.

According to a16z crypto, the monthly spending on crypto payment cards has grown from a niche scale to $759 million. These cards allow users to pay with cryptocurrency in all scenarios that support traditional card organizations, with stablecoins converted to local currency at the point of sale, making it no different for merchants than regular card transactions.As of July 31, looking at the spending composition from various card programs, RedotPay has long held the majority share, while EtherFi, KAST, Karta, and others have gradually increased their share since the end of 2025. a16z crypto states that crypto cardholders do not need traditional bank accounts and can deposit stablecoins with the issuer or hold them directly through self-custody. These cards have expanded global users' access to dollar accounts and provided a convenient spending method for stablecoin holders.

According to Jinshi reports, Yushu Technology (688836.SH) announced that the company will conduct its initial public offering and list on the Sci-Tech Innovation Board. This issuance will adopt a combination of strategic placement, offline issuance, and online issuance. The proposed public offering will issue 40.446434 million shares, accounting for 10% of the total share capital after issuance, with a total share capital of 404.46434 million shares after issuance.The preliminary inquiry date is August 5, 2026, and the offline subscription date is August 10, 2026. The company has a special voting rights mechanism arrangement, and the actual controller Wang Xingxing controls a total of 68.78% of the voting rights under the voting rights differential arrangement.

The latest research from the Cambridge Centre for Alternative Finance shows that approximately 31% of Ethereum node activity is located in the United States, with about 39% distributed in the EU region excluding the UK, indicating that the geographical distribution of Ethereum nodes is still relatively concentrated in Western countries. The research leader, Alexander Neumuller, stated that the current node distribution is not concentrated in a single country but primarily relies on a few cloud service providers, including Hetzner, Amazon AWS, and OVH.It is noteworthy that the Ethereum network does not require half of the validators to fail for issues to arise; when more than one-third of validators go offline simultaneously, the network may be unable to complete the finalization of block checkpoints. Neumuller pointed out that nodes and validators do not have a one-to-one correspondence; a single node may run multiple validators, making it currently impossible to accurately assess the actual impact of a specific node or service provider failure on the validation network. Additionally, the research reassessed the energy consumption situation after Ethereum's Merge. The data shows that Ethereum's current annual energy consumption is approximately 7.9 GWh, equivalent to about 1 megawatt of continuous power, which is only about 0.02% of the pre-Merge level, with energy consumption decreasing by approximately 99.98%. Currently, the proportion of sustainable energy used by the Ethereum network exceeds 56%, higher than the global average. The research also pointed out that the concentration of client software is another potential risk; if a dominant client has a vulnerability, it could affect a large number of network participants. The report was published by the Cambridge Centre for Alternative Finance, with support from the Ethereum Foundation.

Changxin Technology (688825.SH) announced that the company will conduct its initial public offering and list on the Sci-Tech Innovation Board, with an issue price of 8.66 yuan per share. Investors are requested to subscribe online and offline at this price on July 16, 2026 (T day), with no need to pay subscription funds at the time of application.Among them, the offline subscription time is from 9:30 to 15:00, and the online subscription time is from 9:30 to 11:30 and 13:00 to 15:00. The total number of initial shares issued is 66,880,886.08 shares, accounting for approximately 10.00% of the total share capital after issuance, and granting CICC an over-allotment option not exceeding 15.00% of the initial shares issued.The price corresponds to a diluted price-to-earnings ratio of 308.92 times for 2025, based on the lower of pre- and post-deduction earnings (without exercising the over-allotment option), which is higher than the industry average price-to-earnings ratio of 76.32 times and the average price-to-earnings ratio of comparable companies of 134.62 times. The total amount of funds raised is expected to be approximately 57.919 billion yuan (before the exercise of the over-allotment option), with a net amount of approximately 57.638 billion yuan after deducting issuance expenses.

The Websea offline summit was successfully held, bringing together hundreds of industry partners, channel representatives, market elites, and regional operation center teams to exchange ideas on transaction innovation, market growth, and long-term value opportunities.The holding of this summit releases a positive signal that Websea's market strategy is accelerating comprehensively. Currently, Websea is continuously advancing the layout of regional operation centers, global BD recruitment, channel cooperation upgrades, and regional market expansion, with multiple business lines working simultaneously to further expand the platform's market coverage, channel scale, and ecological influence.In the future, Websea will continue to focus on product innovation as the foundation, channel growth as the core, and market implementation as the driving force, working hand in hand with outstanding global teams and partners to build a more vibrant and long-term valuable digital asset ecosystem.

According to CoinDesk, the Ethereum Foundation recently disclosed that its security team used AI agents to test the software running on Ethereum validator nodes and successfully discovered a remotely triggerable vulnerability that could cause node crashes. However, researchers emphasized that human review remains a key step in distinguishing real vulnerabilities from false positives among the large number of security reports generated by AI.It is reported that the discovered vulnerability exists in the Ethereum network message propagation protocol gossipsub, where an attacker can remotely trigger the node software to enter an abnormal computation state, causing the program to crash and shut down, making the validator node go offline until the operator manually restarts it. This vulnerability has been fixed and registered under the identifier "CVE-2026-34219."Nikos Baxevanis, a member of the Ethereum Foundation's protocol security team, stated that what was truly surprising about this incident was not the AI's ability to discover vulnerabilities, but rather the amount of time the team spent discerning which vulnerabilities were real and which were merely seemingly credible "illusions."

According to The Block, the latest report "Merged Ethereum" released by the Cambridge Centre for Alternative Finance (CCAF) shows that approximately 31% of Ethereum node activity is located in the United States, and 39% is distributed across the European Union (excluding the UK), presenting an overall Western centralization pattern.The report points out that there are potential centralization risks in the Ethereum network—nodes are highly concentrated among three major hosting service providers: Hetzner, AWS, and OVH. If more than one-third of the validators go offline simultaneously, the network checkpoints will stop finalizing.In addition, the report recalculated Ethereum's energy consumption, estimating that the annual electricity usage after the merge is about 7.9 gigawatt-hours, a decrease of approximately 99.98% compared to before the merge, with sustainable energy accounting for over 56%. The cost needed to offset its annual carbon emissions is only about $33,500 to $73,800.

DeFi portfolio tracker Zapper's CEO Seb Audet announced that after nearly 7 years of operation, the company has decided to shut down completely. All functionalities, including the official website, mobile application, and API services, will officially go offline on August 3. Zapper was established in 2019 and was a mainstream portfolio tracking tool in the DeFi space, with features including liquidity pool monitoring, yield farming tracking, DEX aggregation, and NFT support. At its peak, the project had 2 million monthly active users and processed over $13 billion in transaction volume.Zapper previously raised $15 million in Series A funding led by Framework Ventures, with investors including Mark Cuban. Seb Audet stated that after evaluating various options, the company believes that an orderly shutdown is the best choice at this time.

According to Jinshi reports, Doubao has released a "Notice of the Shutdown of Doubao Intelligent Agent Function," stating that the intelligent agent function will be discontinued on July 15, 2026. At that time, users will not be able to create new intelligent agents, and already created and saved intelligent agents will also be unable to be called or run.After July 15, Doubao will process the data related to intelligent agents, and it will no longer be possible to view or restore them within Doubao.

According to Bloomberg, the European Parliament's Economic and Monetary Affairs Committee (ECON) has approved a position paper on the legal framework for the digital euro, paving the way for negotiations with member state governments and the European Commission on the final rules. The plan will advance both the online and offline versions of the digital euro, with the European Central Bank aiming to complete the launch by 2029 and to conduct a pilot within the next 12 months to validate the infrastructure in real-world scenarios. Regulators hope that the digital euro issued by the European Central Bank will reduce reliance on Visa, Mastercard, and dollar-denominated stablecoins, while providing a "secure European domestic option" for retail payments without eliminating physical cash.

According to official news, Polygon Labs announced that the Polygon zkEVM Mainnet Beta sequencer will be taken offline on July 1, 2026, and the timeline was first announced in June 2025.The official reminder states that on-chain wallet assets must be bridged to the Ethereum mainnet via ui.agglayer.dev before this date. On-chain wallet balances that are not bridged in time will be automatically migrated to Ethereum L1 and can be claimed through a dedicated interface afterwards.Polygon emphasizes that it does not control any DeFi protocols on zkEVM, and assets locked in DeFi contracts cannot be automatically migrated. Protocol teams and users must actively withdraw and migrate liquidity before July 1, and any automatically migrated assets that remain unclaimed after the deadline will be considered forfeited after December 31, 2027.

According to the official announcement, Binance will remove and stop trading the following spot trading pairs on June 12, 2026, at 03:00 (UTC): ADA/BNB, DUSK/BTC, EGLD/ETH, ENSO/BNB, LSK/USDC, NIGHT/BNB, and S/BNB.At the same time, Binance will terminate the spot trading bot services for these trading pairs. Users need to update or cancel the relevant bots before the service stops to avoid potential losses.

According to Decrypt, the cryptocurrency technology company Quantography Labs has announced the launch of the early access version of the cryptocurrency wallet Lock.com. This product uses "Isolated Signing" and an Air-Gapped architecture, enabling offline private key management without the need for dedicated hardware wallet devices.The official statement indicates that Lock.com separates the signing environment from the network broadcasting environment: private keys are always stored in a completely offline device, while transactions are created and broadcast on a connected device, thus avoiding private key exposure to the internet. The platform emphasizes that users can directly use existing devices without relying on third-party hardware manufacturers or supply chains. Additionally, Lock.com integrates post-quantum cryptography architecture, including ML-DSA digital signatures and ML-KEM key encapsulation mechanisms, to enhance security in future quantum computing environments.Quantography Labs stated that the current early access phase is mainly used to collect user feedback and prepare for a subsequent full launch.

Web3 security company CertiK has released the "Skynet North Korea Cyber Threat Report." The data shows that since 2016, North Korean hacker groups have plundered approximately $6.75 billion in digital assets. In 2025 alone, the losses from thefts they orchestrated reached as high as $2.06 billion, accounting for nearly 60% of the total losses in the global cryptocurrency industry for the entire year (including the $1.5 billion Bybit theft case). As of early 2026, this threat trend continues, with losses accounting for about 55%.The report emphasizes that the attack patterns of North Korean hackers have undergone a fundamental shift, evolving from simple code vulnerability exploitation to a national-level attack system that combines social engineering, deep supply chain attacks, and "physical infiltration." In the recent Drift protocol incident, attackers even spent six months lurking at offline industry conferences, establishing trust through real funds and interpersonal interactions before executing their attack.CertiK security experts warn that in the face of such systemic attacks, simple technical defenses have become weak. Cryptocurrency institutions urgently need to fully implement a "zero trust" hiring model, strengthen third-party supply chains, establish fund circuit breaker mechanisms, and collaborate with professional security organizations to build a comprehensive lifecycle defense system covering code audits, round-the-clock risk monitoring, and on-chain anti-money laundering/KYT (Know Your Transaction) fund tracking.