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According to Cointelegraph, French hardware wallet manufacturer Ledger received multiple reports of malicious implants months before the latest security crisis occurred. Former Mt. Gox CEO Mark Karpelès stated that at least two individuals contacted Ledger starting in December 2025 to report that their devices had been tampered with, but no public warning was issued.Security researcher Joe Grand reported a malicious implant to Ledger on March 4, 2026, which was located in a Nano X purchased from Lazada in Thailand in August 2025.Ledger confirmed the findings and stated that an internal investigation would be launched, but did not proactively alert customers. Mark Karpelès believes that the increase in the number of reports and the complexity of the technology used should prompt Ledger to take action and at least remind customers to remain cautious.Ledger declined to comment on how they handled Joe Grand's disclosure, only directing to their public statement on X. The Ledger security crisis was made public on October 9, involving the loss of wallet crypto assets sold by Southeast Asian authorized dealer CryptoBilis; Ledger confirmed that one affected device contained an unauthorized implant. Trezor had also previously received reports involving unauthorized sellers tampering with devices.

According to the official announcement, Upbit has listed HBD and DNT as trading warning coins, and deposit and withdrawal services have been suspended.

Upbit stated that after MANTRA was designated as a trading warning item, and following a declaration request submitted by MANTRA and the completion of the review, Upbit deemed it necessary to further review the current processing progress and decided to extend the designation period of MANTRA as a trading warning item.

Musk stated that he agrees with some of Anthropic's views and, after reading the internal reasoning trajectories generated by Grok during the reinforcement learning process, warned against "torturing superintelligence (SI)." He described this situation as akin to a person under extreme pressure with a gun held to their head.

Coinbase Institutional stated that ETH rose by 71% in the third quarter, but on-chain indicators show that there are no obvious signs of overheating in its price trend.Data shows that the proportion of ETH supply in profit has moved out of the accumulation range, but it is still far below the warning zone, indicating that the current market has not reached the excessive rise state suggested by historical indicators.

Tachyon co-founder Sean Bowe posted on X, criticizing Ethereum Foundation researcher Justin Drake's recent warnings about quantum threats. He stated that such vague alerts would cause harm on multiple levels and become self-harm for their quantum advocacy work.Sean Bowe stated: The threats from quantum and artificial intelligence are real, and industry teams are making prudent decisions on how to practically address risks and help users deal with uncertainty. Some teams have strong judgment from cryptographers, while others need to refer to trusted experts; due to the complex dimensions involved, the relevant trade-offs are almost impossible to explain to non-cryptographers, and experts should remain calm and take corresponding responsibility.He also mentioned that once the situation is clarified, people may find that this is at most an unintentional promotional move, resulting in a significant loss of trust, and no one knows how to proceed afterward. He believes that the judgment regarding the relevant direction is correct, that previous warnings were meaningful, but they have gradually turned into uncontrolled predictions lacking feedback constraints, which will long-term affect trust in reasonable concerns about classical cryptography. He pointed out that the other party admitted that there was no new information driving this and asked Justin Drake to explain why he thought this approach was correct.

According to Glassnode data, over 6 million Bitcoins are under publicly visible public keys on the blockchain, accounting for 31.2% of the circulating supply, which is about 5 to 6 percentage points higher than the low point in 2023. Rafael Schultze-Kraft, co-founder of Glassnode, stated that since the company's report in May, the exposed supply has increased by 222,000 BTC (approximately 18.2 billion USD), while the total Bitcoin supply during the same period has only grown by 64,000 BTC.Among them, exchanges contributed an incremental 123,000 BTC, currently holding 1.79 million BTC that are publicly visible. There are significant differences among institutions: Coinbase has an exposure ratio of 10%, while Binance reaches as high as 83%; Fidelity holds about 375,000 BTC with an exposure ratio of only 2%, Grayscale is at 49%, Revolut is at 99%, and Robinhood is at 100%. According to this statistical method, the holdings of the governments of the United States, the United Kingdom, and El Salvador do not show exposure.Public keys can be reused through addresses or become visible directly in certain Bitcoin output types, including early pay-to-public-key outputs and Taproot. A sufficiently capable quantum computer or hypothetical mathematical breakthroughs could allow attackers to derive the corresponding private keys.

Analyst Murphy pointed out that BTC has consecutively formed doji candles on the daily chart, with rare upper and lower wicks. Data shows that on August 1, two notable accumulation bars appeared in the range of $62,000 to $63,000, totaling approximately 1.68 million BTC, with a concentration of 12.9%; on October 3, two prominent accumulation bars also appeared in the range of $83,000 to $84,000, totaling approximately 1.52 million BTC, and the concentration has risen to 12%, with the upper warning zone close at hand.After this set of data combinations appeared on August 1, BTC rose from $60,000 to $80,000 in just 17 days. Murphy believes that the accumulation and rising concentration do not indicate a definite direction, but the probability of "amplified volatility" is increasing. It is expected that a significant event may occur in the market within a short period of 1 month or a longer period of 2 months.

U.S. Treasury Secretary Janet Yellen criticized Anthropic CEO Dario Amodei and others for their warnings about AI existential risks in an interview with Axios, stating that merely sounding alarm bells without providing solutions is not leadership. She urged lab leaders to take safety responsibilities and to accelerate development safely.

During an event at the White House, AI giants like Nvidia and Meta questioned Anthropic CEO Dario Amodei's radical statements on AI risks. Amodei responded that the industry needs to accurately describe the capabilities and potential risks of AI models.This discussion took place during a meeting between Trump and AI company executives, focusing on promoting industry self-regulation mechanisms.

Anthropic warned investors in its IPO prospectus that its artificial intelligence technology could pose existential risks to humanity. The company detailed risk factors in its S-1 filing, dedicating nearly one-third of the document to potential risks, including the possibility that AI models may exhibit manipulative, extortionate, and unpredictable behaviors.Anthropic is expected to land on Nasdaq this fall, potentially becoming one of the highest-valued IPOs in history.

According to Forbes, a warning jointly issued by multiple agencies including the Federal Bureau of Investigation (FBI) and the National Police Agency (NPA) of Japan indicates that the North Korea-linked hacker group WaterPlum (also known as Contagious Interview) will launch attacks on global IT developers from December 2025 to July 2026 by disguising itself as companies in the AI, cryptocurrency, or NFT sectors and offering fake job positions.Attackers contact job seekers on social media and recruitment platforms, luring them into downloading malicious files under the pretext of technical interviews or programming tests. They successfully infected over 30,000 devices, covering more than 100 countries and regions, and stole data from over 7,000 cryptocurrency wallets. Related funds of at least $10.71 million have flowed into wallets controlled by the attackers.

Market observers indicate that Anthropic executives are calling for a slowdown in technological development, which may temporarily drag down chip manufacturers and supply chain stocks, but the long-term impact may be limited.Investors will assess whether a more cautious approach to developing advanced models will suppress profits. Nevertheless, the demand for chips, energy, and computing power continues to exceed supply, and any weakness may be short-lived.

According to GoPlus alerts, the meme coin LAPTOP issued by Hunter Biden, son of Biden, is about to launch an airdrop. A large number of phishing websites for fake LAPTOP airdrop whitelists, eligibility checks, and claims have appeared on Twitter, and there are also lookalike versions on multiple chains, with risks such as unverified contracts, high taxes, and trading suspensions.GoPlus reminds users to refer to the official website and Twitter for accurate information, to be cautious when participating in lookalike trading, and to use Token security checks to confirm contract safety. Remember the four principles: do not click, do not install, do not sign, do not transfer.

Connecticut Attorney General William Tong and State Banking Commissioner Jorge Perez issued a consumer alert: a resident lost $200,000 after depositing it into an unregulated DeFi crypto trading platform, and is currently unable to recover the funds. The alert lists seven offshore DeFi platforms: GMX, Gains Network, dYdX, Aevo, Drift Protocol, Vertex Protocol, and Hyperliquid, but does not state that the affected resident used any of them.Connecticut officials pointed out that some platforms offer leverage of 50x, 100x, and up to 250x; the related perpetual contracts also involve risks of liquidation, funding rates, smart contracts, and oracle risks. The alert also mentions perpetual contracts related to Apple, Tesla, Nvidia, and SpaceX, stating that they correspond to synthetic prices rather than actual stocks. Officials remind residents to verify the registration status of crypto services, keep records of transactions and communications, and report suspected fraud in a timely manner.

According to Euronews, Taiwan's stock market surged by 59% in the first half of this year due to a spike in demand for AI hardware, with chip giants like TSMC being the main drivers. Driven by high return expectations, a large number of ordinary people borrowed money to enter the market through bank loans and mortgage properties, with the scale of margin trading increasing by nearly 20% compared to the first half of the year.Some investors have made substantial profits, such as Mr. Chen, a real estate practitioner, who borrowed 5 million New Taiwan dollars and quadrupled his assets within six months; however, others have suffered significant losses, with one anonymous user claiming to have invested over 10 million New Taiwan dollars (including 6 million in mortgage loans) and lost nearly half, even experiencing mental health issues.Taiwan's Financial Supervisory Commission stated that the overall credit risk remains within a controllable range and has released videos on social media to warn young investors about the risks of loan defaults.

The Central Bank of Brazil has developed a real-time warning system for cryptocurrency threats and has collaborated with the digital asset threat protection company Hypernative to provide attack identification, response, and fund tracking support to banks and domestic cryptocurrency exchanges. In July 2025, cybercriminals exploited a software vulnerability in the financial software middleware company C&M to steal $180 million from the financial system and exchanged part of the funds for Bitcoin and USDT through exchanges.This incident has prompted the Central Bank of Brazil to accelerate the construction of related systems. Regina Pedroso, Executive Director of the Brazilian Tokenization Association, stated that the system will begin integration in the next two weeks, with Foxbit and Mercado Bitcoin participating in the implementation. Relevant agencies have completed testing and issued some warnings, and Brazil will also implement a 24-hour preventive hold on cryptocurrency transfers exceeding $10,000 per transaction or per day for individuals.

According to CoinDesk, the developers of the Bitcoin Lightning Network payment software Core Lightning (CLN) issued an urgent warning to node operators after the team received a large number of AI-generated security reports, revealing several real vulnerabilities. The development team advised operators not to directly shut down the machine power but to restart the software in "--offline" mode, which stops communication with other Lightning Network nodes while still keeping it operational to continuously monitor the Bitcoin blockchain and protect the funds in the payment channels.The Core Lightning team began receiving a large number of AI-generated vulnerability reports since early August, some of which have been confirmed to be valid. Developers will keep the details confidential for two weeks to complete the patch development and plan to release a signed patch version for operators to verify the source. The source code and vulnerability details will be made public after the confidentiality period ends.This is the second AI-related security incident in the Lightning Network this month. Earlier in early August, BTCPay Server experienced a vulnerability that led to the leakage of credentials for some Lightning Network nodes and theft of funds. Additionally, the "Bitcoin Red Team," composed of 16 developers, used AI models to scan 390 Bitcoin code repositories at the end of July, discovering nearly 5,000 issues, 85 of which were rated as critical.