OpenAI’s 28-Day Product Sprint, Day 23: Launches iCloud Plugin, Tibo Says “Just kidding, it’s still a Reset today”

Binance founder CZ said four data breaches were reported today: Coinbase’s vendor Amplitude exposed some user contact data (funds were not affected); South Korean crypto exchange Bithumb suffered a user data leak. In traditional finance, two South Korean securities firms also experienced data leaks: Mirae Asset and Daishin Securities. While data breaches cannot be prevented, users can take steps to protect themselves. The leaked exchange data—including names, emails, phone numbers, addresses, ID documents, and transaction records—is mostly used for phishing, SIM swapping, and social engineering attacks. Users should limit the information they share, and use unique email aliases for each exchange platform: this way, if a leak occurs, it cannot be linked to their other accounts, and they can also identify which service was compromised.

Beating AI News, Anthropic engineering manager Felix Rieseberg announced this month his team has eliminated traditional coding interviews in hiring. Rieseberg, who previously worked on Claude.ai, Cowork, and Claude Code Desktop, noted that in the past, interviewers would ask candidates to write code on the spot (such as completing a React programming problem) to assess their coding ability. But Claude now performs these tasks far better, and he observed that the highest-performing engineers on his team are not always the best at such exams. He also found that some entry-level engineers, with the help of AI, are already delivering better results than senior staff. In the past, new hires with ideas often had to draft proposals, convince supervisors, and wait for design and development resources; now they can directly build product prototypes with AI, backed by real-world results. There’s an internal example at Anthropic: employees have long used Claude Code in their terminals, but two recently joined engineers, Anthony Morris and Alice Zhao, built a more user-friendly graphical interface for it. The pair completed the prototype in just one weekend and launched the first public version about eight days later. Rieseberg advised young engineers not to focus solely on learning programming frameworks or practicing interview questions. Instead, they should spend more time understanding company business, identifying real problems, and using AI to build solutions. He believes AI is narrowing the technical gap between new and senior employees, meaning experience and tenure no longer hold the same advantage as before. However, after ditching traditional coding interviews, he has not yet found a better evaluation method. Currently, he mainly reviews candidates’ resumes and work samples, with a particular focus on small projects that demonstrate problem-solving skills and product judgment.

According to TradingBeats monitoring, ahead of SK Hynix’s earnings release, a whale account on Hyperliquid built a bullish position in SKHX in two separate batches. The account currently holds all 1,500 long positions, valued at approximately $1.6595 million, with an unrealized profit of around $268,400, yielding a 57.9% return. On October 23, it first opened 1,000 SKHX long positions at an average price of $896.65; on the evening of October 26, it added to its position at $988.86, bringing the overall average entry price to $927.39. The total notional value of the two long trades is roughly $1.3911 million, using 3x isolated margin leverage. As the pre-earnings rally for SK Hynix persists, SKHX has strengthened further today, currently trading at $1,106.3, up about 6.63% from its earlier level of $1,037.5. The initial 1,000-position base has captured a 23.38% price gain; even with the subsequent higher-cost add-ons, the current price remains around 19.29% above the overall average entry price.

Binance announced that due to spot price deviations across multiple platforms and deposit/withdrawal restrictions, it will activate the last traded price protection mechanism for the USDT-margined BULLAUSDT perpetual contract at 14:00 Beijing time on October 28. The mechanism uses mark price smoothing to mitigate sharp price swings. The protection period will remain active until BULLA spot prices across platforms converge and a stable index price is established; a separate announcement will be released when the period ends. During the protection window, the mark price is calculated based on the contract’s recent average transaction price, with a fluctuation cap of roughly ±1% per second. The funding rate cap has been adjusted from ±2.00% to ±0.005%, and the settlement interval will not switch to hourly even if the cap is triggered. Per market data, BULLA has plunged over 50% in the past 24 hours, currently trading at $0.073.

Decentralized perpetual trading platform Trade.xyz announced in a post that JIO-related contracts have been switched from the pre-IPO perpetual market to external pricing, and are now officially live, supporting up to 10x leverage and 24/7 trading. The platform previously launched a pre-IPO perpetual market for JIO, whose underlying asset is Indian telecom provider Reliance Jio Infocomm Limited.

According to Bitget market data, Japanese storage stock Kioxia surged 16%, marking its largest single-day gain in nearly 12 weeks. Meanwhile, South Korean stocks Samsung Electronics rose 9.5% and SK Hynix gained 10% today.