Tether CEO Says Company Owns Approximately 150,000 Bitcoin Tether CEO Paolo Ardoino said during his keynote at the Plan ₿ Forum in Lugano that the company owns approximately 150,000 BTC. He also claimed that Tether serves more than 730 million users globally, adding around 30 million new wallets per quarter. According to Tether’s Q3 2026 attestation, the company held approximately $122.8 billion in U.S. Treasury bills directly, or $132.4 billion including repurchase agreements, while excess reserves reached approximately $7.95 billion. Ardoino also outlined Tether’s broader Independence Stack initiative, covering energy, Bitcoin mining, peer-to-peer communications, self-custody wallets, and on-device AI.

Brazil's Largest Crypto Exchange Mercado Bitcoin Confirms Cyberattack; Hypernative Estimates Over $40M in Suspected Losses @MercadoBitcoin, Brazil's largest cryptocurrency exchange, confirmed on November 2 that one of its systems had suffered a cyberattack. The exchange said the incident was quickly contained, customers would not incur losses, and no customer data had been leaked. Deposits and withdrawals have been temporarily suspended as a precaution. According to preliminary analysis by blockchain security firm Hypernative, more than $40 million in suspicious transfers were identified across at least 10 blockchains, including Bitcoin, Ethereum, Solana, and Tron. The estimated losses have not been confirmed by the exchange, and the attack method remains unknown.

BitMine Adds 8,573 ETH, Holdings Reach 6.06M ETH BitMine said it acquired 8,573 ETH over the past week, bringing total holdings to 6,060,506 ETH, or about 4.9% of Ethereum’s supply. The company has 5,227,037 ETH staked, while total crypto, cash, marketable securities and other investments stand at about $14.5 billion, including $498 million in cash and marketable securities.

WuBlockchain Weekly Outlook: A major week for U.S. politics, jobs and AI stocks. Midterms will decide control of Congress, while payrolls could shift Fed rate expectations. AMD and Palantir must show their triple-digit growth can last. Strong AI demand may lift earnings, but higher yields could still pressure valuations.

OneKey Founder: Some Older iPhones Have Unpatchable Chip Vulnerabilities, Posing Risks to Seed Phrase Storage OneKey founder Yishi warned that factory-resetting an older iPhone, enabling airplane mode, and using it to store crypto wallet seed phrases offline may still be unsafe. He noted that iPhone 4S through iPhone X are affected by checkm8, while iPhone XS, XR, 11 series, and second-generation iPhone SE are affected by usbliter8, disclosed earlier this year. These BootROM-level vulnerabilities cannot be fixed through iOS updates. Attackers with physical access and specialized tools may exploit them via USB, even in airplane mode. However, on models such as the XS and 11, these flaws alone do not provide direct access to seed phrases, as device passcodes and the Secure Enclave offer additional protection. Yishi advised affected users to generate entirely new seed phrases in a trusted environment, transfer their assets, use newer devices, keep software updated, and adopt stronger passwords.

World’s Second-Largest Hardware Wallet Maker Trezor Warns of Suspected Hardware Implant in Device Sold by Reseller Trezor said it received a credible report of a suspected hardware implant in a Trezor Safe 5 device purchased from reseller CryptoBilis in August 2026. The company has not yet received the device for verification, and no CryptoBilis customer has reported losing funds. Trezor urged customers who purchased devices from CryptoBilis since March 2026 to move their funds to newly created wallets with new recovery seeds as soon as possible. The company removed CryptoBilis as a reseller on October 9 following reports of tampered Ledger devices. Four Trezor devices inspected so far showed no signs of tampering, and the investigation remains ongoing.

Spot Bitcoin ETFs Record $17.07 Million in Net Inflows; Spot Ethereum ETFs See $105 Million in Net Outflows On October 29 (ET), spot Bitcoin ETFs recorded total net inflows of $17.0719 million, their fourth consecutive day of net inflows. Spot Ethereum ETFs recorded total net outflows of $105 million, their fourth consecutive day of net outflows.

U.S. Bitcoin ETFs Draw $137 Million as Ether Funds Shed $21.4 Million According to SoSoValue, U.S. spot Bitcoin ETFs recorded $137 million in net inflows on October 28, led by BlackRock's IBIT with $136 million. Spot Ethereum ETFs saw $21.41 million in net outflows, although Fidelity's FETH posted the largest individual inflow at $18.78 million. BlackRock is the world's largest asset manager, while Fidelity is one of the largest U.S. investment firms.

Y Combinator Highlights Stablecoins, AI Fundraising, Tokenization and Agent Infrastructure as Key Crypto Startup Opportunities Y Combinator (YC) outlined its crypto startup priorities for the next six months in its October 2026 Crypto Request for Startups, highlighting blockchain-based AI fundraising, new USD and non-USD stablecoins, stablecoin-powered neobanks, real-world asset tokenization, new trading platforms, and AI agent trading and API infrastructure. YC noted that institutional adoption had driven crypto growth over the past year, with demand shifting from speculation toward financial use cases such as hedging and cross-border payments. It expects more assets to be tokenized, new on-chain financial instruments to emerge, and AI agents to become major participants in financial markets.

According to SoSoValue data, US Bitcoin spot ETFs recorded a total net inflow of $176 million on October 27 Eastern Time, with BlackRock's IBIT leading at $151 million in net inflows. Ethereum spot ETFs saw a total net outflow of $60.22 million, with BlackRock's ETHA being the sole fund recording net outflows.