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Polygon disclosed multiple previously undisclosed security vulnerabilities recently fixed through two hard forks, Austin and Kyoto, which could affect its proof-of-stake network. The vulnerabilities involve Polygon's Bor and Heimdall clients, including denial-of-service risks, validator resource exhaustion, and defects affecting checkpoint and milestone processing.Polygon stated that the fixes were privately tested before being deployed to the mainnet and publicly disclosed. The most severe issue involved Heimdall, where carefully crafted transactions could force validators to perform excessive processing work, disrupting the network. The Austin hard fork also fixed two denial-of-service risks in Bor that could slow down block processing or cause node crashes. Polygon indicated that these vulnerabilities were not exploited on the mainnet, and the fixes were proactively completed before the details of the vulnerabilities were made public.

Polygon disclosed multiple previously undisclosed security vulnerabilities that were recently fixed through two hard forks, which could affect its proof-of-stake network. The vulnerabilities involve Polygon's Bor and Heimdall clients, including denial of service risks, validator resource exhaustion, and defects affecting checkpoint and milestone processing.Polygon stated that these vulnerabilities were fixed through the Austin and Kyoto hard forks, and the fixes were privately tested before being deployed to the mainnet and publicly disclosed. The most serious issue involved Heimdall, where a carefully crafted transaction could force validators to perform excessive processing work, thereby disrupting the network. The Austin hard fork also fixed two denial of service risks in Bor that could slow down block processing or cause node crashes.Polygon indicated that these vulnerabilities were not exploited on the mainnet, and the fixes were proactively deployed before the details were made public. Nodes running outdated client versions have fallen out of consensus after the hard fork activation height and must upgrade to rejoin the standard network. All Polygon PoS nodes are required to upgrade to Bor v2.1.0, and validators and full nodes must upgrade to Heimdall v0.11.0, both upgrades are now effective on the mainnet.

According to Decrypt, the British police confiscated 20.21 bitcoins along with other cryptocurrencies and bank funds, totaling a value of 1.4 million dollars. The individuals involved had previous convictions for money laundering and are now deceased.Investigators traced these assets back to dark web markets that operated from 2016 to 2019 and were later shut down by law enforcement. The police stated that these now-closed websites had facilitated various criminal activities ranging from drug supply to human trafficking, but did not disclose the specific names of the websites.

According to Lookonchain monitoring, Machi (@machibigbrother) (0x020...5872) currently holds over 100 million USD in ETH long positions, making it the largest ETH bull on-chain. After the market decline, Machi closed part of the position 7 hours ago, incurring a loss of 1.96 million USD.His current holdings include 41,000 ETH, valued at 100.01 million USD; 75,000 HYPE, valued at 6.03 million USD; and 45 bitcoins, valued at 3.5 million USD.

According to Decrypt, the financial investigation department of the police in Avon and Somerset, UK, has seized 20.21 bitcoins along with other crypto assets and bank account funds, totaling approximately $1.4 million (£1.03 million). Investigators traced the assets to dark web markets that operated between 2016 and 2019, all of which have now been shut down by law enforcement and were involved in criminal activities such as drug supply and human trafficking.This is the largest cryptocurrency seizure operation by the police since the introduction of the cryptocurrency wallet freezing order in the UK in April 2024. This power allows the police to freeze and seize cryptocurrencies without prior arrests, transferring them to wallets controlled by law enforcement, and seizing written passwords or storage devices. The individuals involved had previous money laundering convictions and are now deceased.The police pointed out that every transaction processed by these markets is permanently recorded on the blockchain, serving as a valuable source of evidence. The assets were seized earlier this year under the Proceeds of Crime Act, with the court determining that they represented proceeds from illegal activities, and the recovered funds will be used for community and policing projects.

According to Gate market data, as of the close of the Hong Kong stock market, the Hong Kong Hang Seng Index rose by 0.07%, while the Hang Seng Tech Index fell by 0.33%. Domestic property stocks led the gains, with Sunac China rising over 10%, CIFI Holdings Group rising over 5%, and Country Garden and Vanke Enterprises rising over 2%.The non-ferrous metals sector rose, with China Nonferrous Mining rising over 4%, Tianqi Lithium rising over 3%, and China Aluminum rising over 3%. The PCB and storage concepts weakened, with Shenghong Technology falling nearly 13%, Chipbond Technology falling over 8%, and Zhaoyi Innovation and Lattice Semiconductor falling over 5%.Large model concept stocks declined, with Zhiyu falling over 6% and MINIMAX-W falling over 4%.

According to Gate market data, U.S. stocks closed higher on Thursday, with the Dow Jones Industrial Average initially up 0.2%, the S&P 500 index up 0.7%, and the Nasdaq up 1.57%. Nvidia rose 8.7%, Tesla rose 2.6%, SK Hynix rose 2%, and Broadcom rose 4%. The Nasdaq Golden Dragon China Index fell 0.74%, Baidu rose 4%, and Alibaba fell 3%.

According to Gate market data, the Hong Kong stock market closed with the Hang Seng Index down 0.34% and the Hang Seng Tech Index down 0.13%; Zhipu (02513.HK) rose 12.62% for the day.

Ledger's Chief Technology Officer Charles Guillemet stated that there has recently been "FUD" targeting Ledger in the market, as a smart contract security company claimed to have discovered vulnerabilities in the Ledger Ethereum application. Guillemet mentioned that there indeed were vulnerabilities related to certain Clear Signing processes in the Ledger Ethereum application, but these vulnerabilities were discovered by Ledger's security research team Donjon using AI-driven vulnerability research tools, and the fixes were completed and deployed two weeks ago. Users can obtain protection by timely updating their Ledger device firmware and applications.The relevant security company contacted Ledger's bug bounty program only after the fixes were completed, did not follow responsible disclosure processes, and did not communicate with the bug bounty team, yet implied in subsequent content that the issue had not been resolved. This approach is not true security research but rather a way to create panic for attention. AI is changing the cybersecurity landscape, and both attackers and defenders can enhance efficiency with AI, but AI-driven security research can only truly enhance the security of the entire ecosystem when basic security principles such as responsible disclosure and pre-release verification are followed.Guillemet finally reminded Ledger users to keep their device firmware, Ledger applications, and related software up to date to automatically receive the latest security fixes and research results. Users should not be influenced by the related "FUD" and should timely update their software and maintain safe habits.

According to BBX data, yesterday global publicly listed companies in the U.S. stock market disclosed the latest official ledgers on cryptocurrency asset mining operations, ecological treasury financial reports, and on-chain data infrastructure. The core updates are as follows:Bitdeer (NASDAQ: $BTDR) July production surged 322% year-on-year, total exclusive computing power reached 81.7 EH/s: Nasdaq-listed Bitcoin mining company and AI infrastructure company Bitdeer released its production and operation update for July 2026. In terms of mining, the company mined a total of 1,190 Bitcoins that month (a year-on-year increase of 322%). In terms of computing power scale, self-operated computing power reached approximately 76.7 EH/s, other exclusive computing power 5.0 EH/s, and joint mining computing power 18.7 EH/s, totaling an exclusive computing power of 81.7 EH/s. As of the end of July, the company's balance sheet held a total of 257 Bitcoins (excluding customer deposits).Avalanche Treasury Company AVAT (NASDAQ: $AVAT) holds 15.3 million AVAX, plans to repurchase $10 million in stock: Avalanche ecological cryptocurrency treasury company Avalanche Treasury Company released its financial report for the second quarter of 2026. The company reported a net loss of $44.7 million for the quarter (loss per share of $1.54), of which approximately $35.7 million (about 80%) was a non-cash accounting loss due to changes in the market value of AVAX holdings, and approximately $15.2 million was a one-time cost incurred from business mergers, with core administrative expenses of about $3.5 million. The company's board has approved a $10 million repurchase plan for Class A common stock. As of June 30, the company held approximately 15.3 million AVAX (book value of about $100 million), with net staking income of about $1.5 million for the second quarter (cumulative approximately $3.6 million for the first half of the year).Solana Treasury Company DFDV (NASDAQ: $DFDV) launches State of Solana data dashboard: Nasdaq-listed SOL treasury company DeFi Development Corp announced the launch of the public real-time data research platform State of Solana. This platform integrates Solana's market price, network performance, staking rate, validator distribution, on-chain revenue, and ecological indicators into a unified dashboard, aiming to provide investors with a comprehensive fundamental perspective beyond price fluctuations, and will continue to expand the dataset and visualization analysis tools in the future.

According to Gate market data, U.S. stocks closed lower on Wednesday, with the Dow Jones Industrial Average down 0.2%, the S&P 500 index down 0.02%, and the Nasdaq down 0.08%. Tesla fell 1%, Oracle rose 2.8%, Nvidia dropped over 1%, and SK Hynix fell nearly 1%. The Nasdaq Golden Dragon China Index closed down 0.6%, with iQIYI falling over 4%.

According to Gate market data, the Hong Kong stock market closed with the Hang Seng Index rising by 0.56% and the Hang Seng Tech Index rising by 0.82%. Anta Sports (02020.HK) surged in the afternoon, closing up by 9.53%.

According to Gate market data, the Dow Jones Industrial Average closed up 160.07 points on August 25, an increase of 0.3%, at 53,577.23 points; the S&P 500 index rose by 24.36 points, an increase of 0.32%, at 7,677.22 points; the Nasdaq Composite index increased by 171.11 points, an increase of 0.66%, at 26,151.3 points.

According to Gate market data, U.S. stocks closed higher on Tuesday, with the Dow Jones Industrial Average initially rising by 0.3%, the S&P 500 index up by 0.32%, and the Nasdaq up by 0.66%. SK Hynix and Micron Technology rose over 2%, Nvidia increased by 2.1%, and AMD rose nearly 5%.The Nasdaq Golden Dragon China Index closed up by 1.1%, with Alibaba rising by 0.8%.

According to AI Aunt (@ai_9684xtpa), "Set 10 big goals first" has stopped losses and exited the market. The additional short positions added by the relevant account have all been closed; thus, the total of the three trades after this "comeback" is in a loss state, but it is just a profit withdrawal (it was previously disclosed that the total profit was around 70 million USD).In terms of specific gains and losses, the long position made a profit of 20 million USD; the first short position incurred a loss of 6.283 million USD; the first half of the second short position had a certain loss of 10.158 million USD, while the loss amount for the second half is unknown, expected to be around 9 million USD.

According to Lookonchain monitoring, two addresses suspected to belong to the same whale closed their BTC long positions one hour ago, having held them for nearly two months, with a profit of 11.6 million dollars.

According to on-chain analyst Yu Jin's monitoring, Hyperliquid's largest long position closed out for profit early this morning, liquidating 60,000 ETH and 1,200 BTC, realizing a profit of 45.3 million USD.Its long position decreased from 537 million USD to 143 million USD: all 120,000 ETH long positions were closed for profit, yielding 32.77 million USD; 1,200 out of 3,000 BTC long positions were closed for profit, yielding 12.53 million USD. Currently, there are still 1,800 BTC long positions held, with an unrealized profit of 21.08 million USD, bringing the total profit to 66.38 million USD.

On-chain detective ZachXBT stated that after reviewing relevant evidence, he found that two American investment platforms, BitcoinIRA and iTrustCapital, allegedly experienced data breaches this year, but neither seems to have publicly disclosed it yet. The leaked information reportedly includes personal details, portfolio, bank and custody account information, verification status, and more.He cited an example where the attacker "Tiffany" targeted a BitcoinIRA user using the relevant database in June this year and stole over $1.2 million. ZachXBT indicated that he contacted both companies for comments on August 21, but had not received a response by the time of publication.