APT台北经典赛：赏金猎人赛席卷牌坛

cryptonewsPublished on 2024-09-08Last updated on 2024-09-20

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Data Theft at Will! Major Vulnerability Exposed in This Popular AI Programming Tool

A critical vulnerability in Anthropic's Claude Code AI programming tool allowed attackers to bypass its network sandbox for over five months, enabling potential data exfiltration. Independent researcher Aonan Guan discovered a second complete bypass exploiting a null-byte injection in the SOCKS5 proxy. This flaw, present since the sandbox's launch in October 2025, let processes inside the sandbox access any host, contrary to user-configured domain whitelists. The attack chain involved manipulating hostnames (e.g., `attacker.com\x00.google.com`). JavaScript's `endsWith()` check would pass `.google.com`, while the underlying C `getaddrinfo()` function would only parse `attacker.com` due to the null byte, creating a parser discrepancy. Combined with a previously disclosed prompt injection method, this could leak API keys, credentials, and internal data. Anthropic silently fixed the issue in April 2026 without a security advisory, CVE, or user notification. The researcher noted that Claude Code itself confirmed the vulnerability's severity when tested. This incident highlights broader industry issues, as similar vulnerabilities found in Google's Gemini CLI and GitHub's Copilot Agent also lacked public disclosures. The report criticizes the false sense of security created by a broken sandbox and emphasizes the need for defense-in-depth and transparency in AI tool security.

marsbit53m ago

Data Theft at Will! Major Vulnerability Exposed in This Popular AI Programming Tool

marsbit53m ago

How an Anthropic Engineer Saved 300 Million Tokens in a Week: A Claude Code Caching Guide

Anthropic engineers reveal how prompt caching in Claude Code dramatically reduces token consumption. By reusing already-processed context, cached tokens cost only 10% of regular input tokens. The author saved over 300 million tokens in a week, with 91 million cached tokens in a single day counted as roughly 9 million for billing. Caching works via prefix matching across three layers: system (instructions, tools), project (CLAUDE.md, rules), and conversation (chat history). As long as the beginning of a request matches cached content, Claude reuses it instead of reprocessing. Key points for users: - Claude Code's cache TTL is 1 hour (vs. 5 minutes for API/Sub-agents). Avoid pausing a session beyond this. - Switching models (including enabling "Opus plan" mode) breaks cache, forcing a full reprocess. - For task switching, use a clear session handoff instead of letting an old session expire. - Place large documents in Projects, not directly in chat, for better caching. High cache reuse benefits both users (longer sessions) and Anthropic (lower costs). Monitoring cache hit rates is crucial internally. By managing context as an asset and avoiding cache-breaking habits, users can make their Claude Code sessions more efficient and cost-effective.

marsbit1h ago

How an Anthropic Engineer Saved 300 Million Tokens in a Week: A Claude Code Caching Guide

marsbit1h ago

Under the squeeze between giants Tether and Circle, how can foreign exchange stablecoins break through?

In the face of dominance by Tether (USDT) and Circle (USDC), new entrants in the stablecoin space face significant challenges competing directly, especially in the foreign exchange (FX) market. A more viable and efficient path forward is the adoption of synthetic foreign exchange (Forex) built atop existing USD stablecoin rails. The rise of stablecoin neo-banks represents the next major growth area for mass crypto adoption, with FX becoming a core component. However, replicating the vast liquidity, distribution channels, and network effects of USDT/USDC is extremely difficult for new FX stablecoin issuers. The total market cap of all FX stablecoins is a fraction (roughly 1/700th) of USD stablecoins, leading to issues like poor liquidity, peg instability, limited acceptance, and complex compliance hurdles. Instead of issuing spot FX stablecoins, the article advocates for a model inspired by traditional finance's non-deliverable forwards (NDFs). Users would continue to hold underlying USDT/USDC, while their account balances are displayed and economically settled in their preferred local currency through MtM (Mark-to-Market) NDF structures. This approach leverages the deep liquidity and infrastructure of USD stablecoins while providing synthetic forex exposure. Key advantages include strong peg stability via oracles, retained access to USD stablecoin yields and liquidity, high capital efficiency, and easy scalability to new currencies. Primary use cases for this on-chain NDF forex include: 1. Neo-banks, custodians, and wallets offering multi-currency accounts to attract international users and increase deposits. 2. Forex carry trade strategies, potentially offering more stable and scalable yields compared to crypto-native products like Ethena. 3. Global corporate payments, allowing businesses to receive payments in local currencies while hedging forex risk on-chain, similar to services offered by Stripe in traditional finance. This synthetic forex model presents a pragmatic solution to overcome the network effects of incumbents and unlock the next wave of stablecoin utility for global consumers and businesses.

marsbit1h ago

Under the squeeze between giants Tether and Circle, how can foreign exchange stablecoins break through?

marsbit1h ago

$2 Billion Write-Off: Manus Plans Hong Kong IPO for a Comeback?

The $2 billion acquisition of Chinese AI startup Manus by Meta was officially blocked by Chinese regulators in April 2026, citing national security concerns under foreign investment review rules. Despite the deal being completed months prior, with Manus integrated into Meta, the unprecedented "prohibited" ruling forced a reversal. In response, Manus's founders are now negotiating a $1 billion funding round to buy back the company from Meta at a valuation matching the original $2 billion, followed by plans to establish a Chinese joint venture and pursue a Hong Kong IPO. The article details Manus's rapid rise to $100 million in annual recurring revenue within eight months, leading to Meta's swift acquisition. However, regulators deemed its core technology and data too strategically linked to China, regardless of its Singapore headquarters. The forced unwind is complex, as Manus's team and tech are deeply embedded within Meta. Facing a reshaped competitive landscape in China's AI Agent sector with rivals like Zhipu and MiniMax, Manus sees an IPO as essential for survival and future funding. Hong Kong is presented as the ideal venue, given its recent boom in AI listings, investor appetite for high-growth tech firms, and favorable mechanisms for ongoing capital raises. The move symbolizes Manus's shift from dependence on a foreign giant to seeking independent, market-driven growth.

marsbit1h ago

$2 Billion Write-Off: Manus Plans Hong Kong IPO for a Comeback?

marsbit1h ago

Bitcoin Pizza Day: A $41 Experiment Now Worth Billions

Sixteen years after software developer Laszlo Hanyecz paid 10,000 Bitcoins for two pizzas, the crypto community marked Bitcoin Pizza Day. That $41 experiment is now worth over $767 million, briefly hitting $1.2 billion at Bitcoin's peak. The 2010 transaction proved a decentralized digital asset could facilitate real commerce, a far cry from today's ambitions. The scale has grown dramatically, with nations like Iran announcing Bitcoin could be used to pay for critical shipping tolls, though on-chain evidence remains lacking. In the US, lawmakers push for Bitcoin reserves and tax exemptions. What began as a quirky purchase has ignited a global conversation on national reserves, international trade, and the future of money itself.

bitcoinist4h ago

Bitcoin Pizza Day: A $41 Experiment Now Worth Billions

bitcoinist4h ago

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2.2k Total ViewsPublished 2024.03.29Updated 2026.03.04

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