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According to monitoring by Catcher Predict, in the Polymarket event "Pittsburgh Pirates vs. St. Louis Cardinals," the "Yes" option in the sub-market "Overtime" has experienced a dramatic fluctuation in winning probability, soaring from 8.5% an hour ago to the current 50% (a fluctuation of 41.5%). Please note the impact of related breaking news.

According to monitoring by Galaxy's research director, Coldcard hackers are still active, and one hacker stole a key generated by increasing entropy through 5 dice rolls.

The Sandbox released an update on the security vulnerability attack incident involving the SAND cross-chain bridge, stating that the attacker modified the verification mechanism to forge cross-chain deposit messages and mint unbacked SAND. This incident resulted in approximately 14.7423 million SAND being withdrawn, valued at about $697,000. Additionally, some uncollateralized SAND was profited through market trading, leading to an overall economic impact of approximately $1.497 million, of which the attacker actually obtained about $987,000.The Sandbox stated that the attack did not affect the supply of SAND on Ethereum and Polygon, with the total amount of SAND on Ethereum remaining unchanged at 3 billion. There were also no super administrator privileges stolen, and the attack stemmed from a vulnerability caused by the combination of the general call function in the token contract and the design of bridge permissions. Currently, the related addresses have been marked, and collaboration has begun with exchanges, security agencies, and the LayerZero team.For affected users, The Sandbox promises to compensate wallets holding legitimate bridged SAND with a 1:1 ratio of SAND on the Ethereum chain based on an on-chain snapshot taken before the attack. The compensation application process is expected to open within two weeks and will last for two weeks.

Coinkite's hardware wallet Coldcard has been exposed for a serious entropy vulnerability, which has gone undetected since 2021, resulting in over $100 million in Bitcoin being stolen, with victims mostly being users of single mnemonic wallets. The weak entropy allowed attackers to guess private keys through customized means, prompting the Bitcoin community to reassess the reliability of single-signature self-custody.Against this backdrop, multi-vendor multisig solutions are becoming the new custody baseline recommended by long-term holders. This solution requires users to construct multisig addresses using keys from different wallet vendors, such as Trezor Safe 7, Ledger Nano, and Casa recovery keys to form a 2-of-3 multisig, thereby reducing reliance on a single hardware vendor. Multisig can also defend against wrench attacks and has given rise to Bitcoin insurance services priced in BTC, such as AnchorWatch.However, multisig also has its drawbacks; users not only need to keep threshold keys but also need to save copies of the multisig script or template to independently recover funds when the wallet service is offline.

Bitcoin News posted on the X platform that BTC Sessions stated their team spent several weeks assisting Bitcoin holders affected by the Coldcard vulnerability in transferring their funds to safety, estimating that they protected Bitcoin worth tens of millions of dollars during this period. However, for many, it was too late.A member of the local Bitcoin community lost 90% of their Bitcoin, while another woman who spoke with them lost all of her Bitcoin. BTC Sessions stated that this could be the most severe self-custody incident in Bitcoin history. BTC Sessions indicated that this experience prompted them to rethink asset custody, with diversified security measures becoming a key lesson.

Chainalysis' latest report shows that the potential taxable on-chain cryptocurrency activity globally will reach at least $457 billion by 2025, while the OECD's Crypto Asset Reporting Framework (CARF) covers only about 14% of the on-chain taxable activities. The report estimates that the United States contributes approximately $112.6 billion, with North America leading at $134.6 billion, followed closely by the European Union at $125.1 billion.This estimate includes income generated from realized gains, mining, staking, and lending, as well as payments denominated in crypto assets, but does not include trading activities within centralized exchanges. The CARF will start data collection on January 1, 2026, across 48 jurisdictions, including the UK and EU, requiring eligible crypto platforms to collect customer and tax resident information and report transaction data to domestic tax authorities for cross-border sharing.The report points out that the CARF's design, centered around crypto intermediaries, is the main reason for the coverage gap. Colby Mangels, a former OECD advisor involved in the development of the CARF, stated that the framework is designed around intermediaries that conduct crypto transactions as their business, which leaves a significant amount of decentralized finance activities outside the reporting scope due to the lack of centralized operators or custodial relationships. Mangels noted that tax authorities are focusing on the progress of anti-money laundering regulations, including when DeFi platforms or their operators should be considered regulated crypto service providers.

The 21Shares report shows that Solana is advancing two governance proposals, SIMD-550 and SIMD-553, which may significantly change the SOL holding economic model in the next two years.SIMD-550 proposes to increase Solana's annual inflation reduction rate from 15% to 30%, allowing it to reach a terminal inflation rate of 1.5% more quickly, with nominal staking yields expected to drop to about 2.25% within three years.SIMD-553 was approved and merged on July 20, and will introduce a destruction fee for compute unit requests, increasing the daily SOL burn amount from about 600-800 to about 7500-9000.The report believes that although the decline in staking income will directly affect the earnings of validators and stakers, a lower issuance combined with a higher burn rate may improve the long-term supply and demand structure of SOL, and could drive some capital towards the decentralized finance ecosystem on the Solana chain.

According to official news, BNB Chain announced its participation in the Mastercard Crypto Partner Program, collaborating with the Mastercard ecosystem to promote the application of digital assets in global payments and everyday business scenarios.

As of August, the total recharge amount for USDC and USDT related stablecoin cards has reached $13.8 billion, an increase of nearly $10 billion over the past 12 months. Stablecoin cards are shifting USDC and USDT from trading balances to everyday consumption scenarios. USDC currently leads in tracked card spending, while USDT is accelerating its catch-up. The usage paths of the two are different; USDC benefits more from fintech integration and payment infrastructure, while USDT is more active in exchanges, remittances, and emerging markets.On-chain settlements also show a multi-chain distribution, with Base leading at approximately $1.2 billion, followed by Solana at $635 million, Polygon at $544 million, and Optimism at $509 million. Networks such as Arbitrum, Scroll, Ethereum, and Stellar also host considerable activity. Stablecoin cards still rely on traditional payment networks like Visa and Mastercard, with competition shifting focus to custody, foreign exchange costs, cashback, and capital efficiency. Circle has renewed its USDC partnership with Coinbase under the original terms and excluded dividend arrangements.

According to monitoring by Catcher Predict, in the market prediction event on Polymarket "ITF M25 Oviedo Men's Singles Alejandro Garcia Carbajal vs. Javier Barranco Cosano", the sub-market "Spread +/-1.5" option "Cosano" has experienced a dramatic fluctuation in winning probability, soaring from 26.5% an hour ago to the current 51% (a fluctuation of 24.5%). Please note the impact of related breaking news.

According to Cointelegraph, the cryptocurrency exchange MEXC has chosen Bybit EU, which has obtained MiCAR authorization, as the recommended alternative platform for Dutch users before exiting the Dutch market. MEXC is preparing to cease its related services in the Netherlands and guide local users to migrate to compliant exchanges.Bybit EU has obtained authorization under the EU Markets in Crypto-Assets Regulation (MiCAR) to provide compliant services in the relevant jurisdictions. This move aims to help Dutch users continue to access trading services after MEXC's exit while complying with local regulatory requirements.

According to Cointelegraph, Galaxy Research has updated the tracking data of the Coldcard hardware wallet attack, confirming that 1,789.28 BTC (worth approximately $114.7 million at the time of the incident) was stolen from 8,865 addresses. Alex Thorn, head of Galaxy Research, stated that 87.3% (approximately 1,561 BTC) remains unspent in addresses controlled by the attackers, with all Bitcoin stolen in the first three waves of attacks still untouched.In subsequent attacks, some Bitcoin has been transferred through CoinJoin mixing transactions and small splits. The statistics are based on 221 victim reports, covering losses of 790.72 BTC, with a median loss of 1.04 BTC, and more than half of the reports involve losses exceeding 1 BTC. Galaxy has shared the attackers' addresses with exchanges, compliance companies, and law enforcement agencies, hoping that funds can be frozen when they flow into centralized intermediaries.

According to monitoring by Galaxy's research director, the Coldcard vulnerability incident involved 8,865 addresses, resulting in a total loss of 1,789.28 BTC, valued at $114.7 million at the time of theft, currently worth $138.8 million.By address statistics, the median loss per address was 0.00152 BTC, with an average of 0.20184 BTC; the median dormancy period was 3.2 years, with an average of 3.6 years. In 221 victim reports, the median loss was 1.04272 BTC, with an average of 3.57792 BTC; the median dormancy period was 3.25 years, with an average of 2.99 years. The losses reported by victims amounted to 790.72 BTC, accounting for 44.2% of the total loss. If medium-confidence losses are included, and the related losses have not yet been confirmed, the total loss will reach 1,824 BTC, valued at $140 million based on the price at the time of loss.

Metaplanet CEO Simon Gerovich stated that the core logic behind their bullish outlook on Bitcoin is that AI is significantly reducing the production costs of software, content, and analytics, and value will shift towards scarce assets that cannot be infinitely increased.The supply cap of 21 million Bitcoins is guaranteed by network rules, cannot be copied or diluted, and can be settled globally 24 hours a day. The long-term experience of Japanese households regarding changes in currency purchasing power has also reinforced this judgment.

WasabiCard's global remittance service supports over 30 fiat currencies, providing cross-border payment and bulk fund distribution capabilities for businesses, fintech platforms, and internet-native enterprises. Eligible payment channels support real-time or T+0 settlement.This service uses stablecoins as the funding allocation and settlement layer, connecting the traditional banking system with local payment networks. After completing the necessary KYC/KYB verification, users can deposit USDT into their WasabiCard accounts and exchange USDT for their chosen fiat currency through the global remittance feature, which is then transferred in real-time to the user's personal bank card account with the same name. In scenarios of corporate fund management and fund collection, eligible businesses can also use corporate bank accounts for receiving payments.Businesses can initiate payments to employees, contractors, suppliers, creators, affiliate partners, and platform merchants through a unified management backend or API. Core capabilities include bulk payments, smart routing, transparent exchange rates and fees, payment status tracking, and financial reconciliation.

According to monitoring by Catcher Predict, in the predicted market Polymarket for the event "Winston-Salem Tennis Open: Pablo Carreño Busta vs. Adolfo Vallejo," the sub-market "Winston-Salem Tennis Open: Pablo Carreño Busta vs. Adolfo Vallejo Total Games in the Second Set O/U 8.5" has seen a dramatic fluctuation in the winning probability of the "Over" option, rising from 30% an hour ago to the current 50% (a fluctuation of 20%). Please note the impact of relevant breaking news.

According to Cointelegraph, ARK Invest founder Cathie Wood stated that analysts focused on Visa and Mastercard fail to understand the disruption brought by Circle, even though Circle has risen 84% since its IPO.

According to Catcher Predict monitoring, in the prediction market Polymarket for the event "St. Louis Cardinals vs. Philadelphia Phillies," the option "St. Louis Cardinals" in the sub-market "St. Louis Cardinals vs. Philadelphia Phillies" has experienced a dramatic fluctuation in winning probability, soaring from 68.5% an hour ago to the current 97.85% (a fluctuation of 29.35%). Please note the impact of related breaking news.

According to CoinDesk, cryptocurrency card spending reached $1.04 billion in July, more than doubling compared to the same period last year. Dollar stablecoins (USDC and USDT) funded 70% of over 10 million transactions, with the average payment amount rising from $59 last year to $86, indicating that users are shifting from large-scale cash-outs to everyday spending, such as groceries, rideshares, and takeout.Emerging markets have become the main growth driver. Data from Visa partner StraitsX shows that total transaction volume in low GDP markets grew by about 600% from March 2025 to February 2026, while high GDP markets only grew by 150%. In Latin America, active users of Oobit in Brazil spend about $400 per month, with grocery stores accounting for 35% of their regional activity; in Argentina, 72% of payments use USDT, with food making up 41% of transactions.Market concentration remains high, with the three platforms RedotPay, EtherFi, and KAST collectively accounting for about 77% of the total tracked volume in July. Visa stated that there are currently over 160 card projects associated with stablecoins launched or in development worldwide. The number of Binance card users in Brazil has increased by 53% since its launch quarter, and Kraken's Krak Card payment frequency has doubled over the past year to 8.3 times per user per week.