AC Milan SpA and FC Internazionale Milano SpA unveiled plans for a new arena to replace the century-old San Siro Stadium, in a redevelopment estimated to cost about €2.3 billion, according to Bloomberg. The project is planned for 2031.

According to CNBC, Jefferies upgraded Rivian to Buy from Hold Friday after the EV maker's Q3 results, saying a 32% stock decline over the past three months had created a favorable entry point. Jefferies kept its $17 price target, implying 48% upside from Thursday's $11.45 close; Rivian shares rose more than 5% early Friday to above $12. Rivian reported a 48-cent-per-share loss, narrower than the 64-cent consensus estimate, and revenue of $2.16 billion, above the $2.0 billion estimate. Gross profit was $176 million, and total gross profit margin widened to 8%. Rivian raised its full-year delivery outlook to 67,000 to 70,000 vehicles from 65,000 to 70,000, with R2 its best-selling vehicle by volume in Q3.

Consensys has proposed Divide-and-Pair, a new subgroup membership detection method that speeds checks on the FourQ curve by about 10.8 times. According to Odaily, Consensys cryptographer Youssef El Housni and collaborators from Wuhan University of Technology, KU Leuven, and the National Academy of Sciences of Belarus developed the method. The approach treats two existing methods as opposite ends of the same parameter range and selects settings for each curve, with performance no slower than the existing methods. Reported speedups are about 1.6 times for Curve25519, 1.3 times for Curve448, 1.4 times for GC256A, 10.8 times for FourQ, and seven times for Jubjub. On curves that do not have prime order, such as Curve25519, not every point belongs to the target subgroup, and skipping the check may expose systems to small-subgroup attacks. NIST P-series curves have prime order and do not require this check. The method has been integrated into the open-source gnark-crypto library, which is used by Besu, Linea, go-ethereum, and systems based on gnark, including Succinct and Lighter. The paper has been accepted by IACR Transactions on Cryptographic Hardware and Embedded Systems (TCHES) and is scheduled for publication at CHES 2027.

Hardware wallet maker Keystone said it has reduced its logistics data retention period from 180 days to 90 days, effective immediately. According to Odaily, customers can contact official support after their orders are delivered to request immediate deletion of their data. Keystone said it emailed all affected customers, suspended shipments and isolated affected devices at partner warehouses, including Amazon warehouses. The team is responding to questions through X and customer support tickets and is continuing to improve the security of its affected-customer lookup page. Keystone also advised customers to watch for phishing attempts, saying incident-related emails would come only from official email addresses. The company said it would never ask for a recovery phrase by email, direct message or phone, and urged customers to be cautious of messages demanding urgent action. Keystone said it plans to announce further measures in the coming days and apologized to affected customers.

Keystone has suspended all shipments and isolated affected devices at every warehouse it uses, including Amazon warehouses. According to Foresight News, the hardware wallet provider said it emailed all affected users from [email protected] and cautioned that incident-related emails will come only from that address. Keystone said it will never ask users for their seed phrases by email, direct message or phone. The company also shortened its logistics data retention period from 180 days to 90 days; users can contact customer support after receiving an order to request immediate data deletion. Keystone said it plans to announce further measures in the coming days.

Buying a 5-year default insurance policy on $1 million of Oracle debt costs $31,500 a year; CoreWeave costs $114,500. The credit alarm bells for AI are ringing.

The Shanghai Composite Index fell below 3600 points, and the ChiNext Index retreated 45% from its June high. Multiple indicators, including valuation, sentiment, capital flows, and policy, suggest that the A-share market may be nearing a temporary bottom, but the bottoming process will still take time.

The two founders of a16z donated $92 million to support pro-AI politicians during this election cycle, using political donations to protect their trillion-dollar holdings.

Personal Agent缺的不是模型能力，而是主权归属、上下文控制和让各方愿意付费的商业闭环。

The hot wallet was emptied by EIP-7702 authorization, freezing approximately 3 billion and resulting in a net loss of approximately 1 billion. The key is whether SAFU can cover the losses and restore trust.

Trezor warned customers who bought wallets through CryptoBilis since March 2026 to move their funds after a Safe 5 device was found with a suspected implant that could steal recovery phrases. The company is arranging laboratory tests and offering affected buyers replacement devices, while urging them to create new wallets with fresh recovery phrases.

Binance's hot wallet saw an outflow of approximately $6.3 billion within 55 minutes, with stablecoin issuers freezing about $3 billion, putting pressure on both reserve coverage and custody security.

Binance's hot wallet was emptied by EIP-7702 bulk authorization, resulting in the outflow of approximately $6.3 billion. The attackers did not steal the private keys but bypassed the internal signature process.

The prediction market platform reportedly lost around $2.7 million in user funds, with the latest incident marking its second major third-party security breach in months.

A correct financial report does not equate to a price increase. OKX predicts that the market separates earnings expectations from market pricing into two separate issues.