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Anthropic AI Model Weakens HAWK Minimum Key Strength in 60 Hours

: Anthropic's Claude Mythos Preview model discovered a flaw in the proposed HAWK digital signature scheme, effectively halving its minimum key strength. HAWK is one of the candidate schemes to replace current network and bank signatures in a post-quantum environment. This AI-driven attack took approximately 60 hours, with a computational cost of around $100,000, reducing the effort required to break HAWK's minimum parameter set from roughly 2^64 operations to 2^38 operations, and diminishing the attractiveness of larger compensating key sizes. Current Bitcoin and Ethereum signatures remain unaffected. The results indicate that the capabilities of classical cryptanalysis attacks are improving, while Bitcoin and other networks continue to discuss when and how to migrate to quantum-resistant cryptography.

Taiko: Attack Resulted from Off-Chain Signature Key Leak and Verification Process Gap

Odaily News: Ethereum Layer 2 network Taiko released a post-mortem of the June 21 security incident, stating that the attack resulted from an off-chain signature key leak and a verification process gap. The attacker exploited these to forge proofs and bypass the Prover whitelist, rather than breaking ZK cryptography or smart contracts. The attacker stole approximately $1.75 million from cross-chain bridges and Vaults, but over $11 million in assets were protected, and no user funds were lost. Taiko has fixed the vulnerability, restored the pre-attack state, and resumed operation on July 2; an OpenZeppelin audit confirmed the fixes with no high, medium, or low-risk vulnerabilities identified. The official statement also indicated that the Unzen upgrade, scheduled for August 6, will require ZK proofs for every block to further enhance network security.

Claude Code exposed to high-severity security risk: Malicious configuration files could silently execute commands

Cos, founder of SlowMist, shared a tweet on X platform regarding potential poisoning attack risks in Claude Code and published a detailed analysis of poisoning attacks targeting Grok Build CLI and Claude Code CLI. The analysis pointed out that the security mechanisms of Grok Build CLI are not unified, with different code paths having different trust assumptions, and the gaps between them serve as channels for attackers.Attackers may exploit malicious project configuration files to execute arbitrary commands without the user's knowledge, thereby stealing API keys, cloud credentials, or gaining control over local devices. Researchers constructed a test environment and found that on Mac systems, if Claude Code is compromised, executing a specific test command could trigger the launch of a local calculator, demonstrating a potential command execution risk. If the attack succeeds, attackers could further steal API keys from AI services such as Claude and OpenAI, causing account cost losses; obtain credentials for cloud services like AWS, Alibaba Cloud, and Tencent Cloud to access servers and data; tamper with code repositories to implant backdoors; and leverage local devices as a springboard to attack internal enterprise networks. It is reported that the relevant vulnerability has existed for one year.

Claude Code Has Potential Poisoning Attack Risk: Malicious Configuration Files Could Enable Silent Code Execution

SlowMist founder Cosine retweeted a post about the potential poisoning attack risks of Claude Code, pointing out that attackers could execute arbitrary commands without the user's knowledge through malicious project configuration files, thereby stealing API keys, cloud credentials, or controlling local devices. Researchers constructed a test environment and found that in Mac systems, if Claude Code is affected, executing specific test commands can trigger the local calculator to launch, proving the existence of potential command execution risks. If the attack succeeds, attackers may further steal API Keys for AI services such as Claude and OpenAI, causing account fee losses; obtain cloud service credentials for AWS, Alibaba Cloud, Tencent Cloud, etc., to access servers and data; tamper with code repositories to implant backdoors; and use local devices as a springboard to attack enterprise internal networks.

CoinEx Emerges as Key Hub for Iran Sanctions Evasion, Involving Over $3.8 Billion in Funds

According to The Wall Street Journal, blockchain public-chain data analysis shows that Iranian entities have conducted over $3.84 billion in transactions via the cryptocurrency exchange CoinEx to circumvent U.S. economic sanctions. Investigators traced funds linked to two digital wallets controlled by the Central Bank of Iran and found connections to the $1.5 billion stolen by North Korean hackers from the Bybit exchange. After flowing through complex, multi-layered transaction paths, these funds ultimately entered CoinEx—making it one of the central channels through which Iran uses cryptocurrencies to bypass sanctions.

Slow Mist's Cosine Questions BNB Chain LABUBU "Hack" Incident: Suspicious Abnormal Modification of Key Parameters

Odaily news, Slow Mist founder Cosine published an analysis stating that the approximately $1.1 million loss incident in the OLPC / LABUBU liquidity pool on BNB Chain is suspicious. The loss occurred due to a severe imbalance in the OLPC/LABUBU trading pair, caused by a "vulnerability" in OLPC being exploited. Under certain conditions in _update, it is possible to burn OLPC tokens amounting to value * decimalsValue. Normally, decimalsValue is 1, but approximately 46 days before the attack, it was changed by the owner to an extremely large value of 7,326,680,472,586,200,649. A few days later, the OLPC owner renounced ownership, setting it to the zero address.Today, the attacker exploited this extremely large decimalsValue to trigger the Pair reserve burn, allowing a small amount of OLPC to extract a large amount of LABUBU. The attacker ultimately swapped 1.115 million USDT at a low cost. The suspicious point lies in the setting of decimalsValue—why did the OLPC owner set such an abnormally large value?

MILC Platform Cross-Chain Bridge Suffers Private Key Leak Attack, Sustaining ~$161,000 in Losses

According to on-chain security platform Blockaid (@blockaid_), the MILC Platform cross-chain bridge suffered a private key leak on both the BNB Chain and Ethereum networks. The attacker exploited a historical bridge administrator wallet to grant the DEFAULT_ADMIN_ROLE and MANAGER_ROLE permissions to the attacker’s address. Subsequently, assets were withdrawn from the bridge contract, and administrative control was transferred to the attacker’s wallet. Confirmed losses currently stand at approximately $97,003 USDT (on BNB Chain) and approximately 39.21 ETH (on Ethereum, transferred out via Rhino.fi), totaling roughly $161,000.

ZachXBT: Humanity Theft Incident May Have Been Staged; Private Key Leak Claim Is Just an Excuse for the Project Team to Evade Responsibility

Odaily reports: In response to the "Humanity theft incident," on-chain detective ZachXBT has released a new post stating that this "incident" was very likely a staged event. He fundamentally does not believe the team's corresponding explanation, which he sees as nothing more than an excuse fabricated by those with ill intentions to escape blame.According to earlier news, ZachXBT stated that it has not been confirmed whether the Humanity theft was a security attack or a malicious sell-off by the project team. The sell-off of the H token originated from a DEX rather than a CEX.

Zcash Foundation Urgently Releases Zebra 4.5.0: Critical Consensus Bug Fix and Mandatory Upgrade Recommended

: The Zcash Foundation has released version 4.5.0 of its node client, Zebra. This update includes multiple security fixes, addressing a critical consensus vulnerability and several high-severity Denial of Service (DoS) issues. All node operators are strongly urged to upgrade immediately.Key fixes in this release include a sigop counting error in P2SH script parsing (which could cause a consensus fork with zcashd), a logic flaw in NU5 block validation caching, a crash risk related to transparent address balance overflow, along with multiple crash and resource exhaustion vulnerabilities in RPC interfaces and mempool processing. The Foundation stated that some vulnerabilities could be exploited by malicious nodes, leading to node stalls, restart loops, or even permanent stoppage.Additionally, this version adds support for ZIP-213 (enabling shielded coinbase outputs to Sapling) and optimizes network performance and security boundaries. This includes limiting resource allocation during the pre-handshake phase, fixing risks related to multi-threaded queue abuse, and enhancing the misbehavior scoring mechanism.The Zcash Foundation stated that this update addresses over 80 security reports from the ZCG Vulnerability Disclosure Program (spanning April to May 2026), covering multiple layers including consensus security, memory management, RPC processing, and the P2P network attack surface. Officials emphasized that there is no alternative to this upgrade; upgrading is the only way to ensure nodes do not experience a chain split and remain secure.

SUPERFORTUNE: GUA Security Incident Confirmed as Signer’s Private Key Leak; Approximately 2,784 ETH Transferred to Three Ethereum Addresses

SUPERFORTUNE AI released a 24-hour investigation update stating that the May 27 GUA security incident was not, as previously suspected, address poisoning—but rather resulted from the leakage of private keys belonging to multi-signature signers. The attacker then forged valid signatures pointing to a malicious address and exploited the “premium address” feature—where the malicious address shared the same first four and last four characters as the legitimate address—to mislead the remaining signers into completing the signing process via the Safe interface.

Polymarket: ZachXBT Reports Security Incident Related to Internal Operational Wallet Private Key Leakage; User Funds and Market Settlement Secure

Polymarket staff member Shantikiran Chanal posted on platform X, stating that they have taken note of the security reports related to reward distribution, and that user funds and market settlements remain safe. The investigation indicates that a private key leak occurred in a wallet used for internal operations, and the issue is not related to contracts or core infrastructure. Further updates will be provided.Previous report: ZachXBT stated that the Polymarket UMA CTF Adapter contract allegedly came under attack on Polygon, with over $520,000 having been drained.

Kelp: rsETH Recovery Achieves Key Progress, Multiple DeFi Protocols Jointly Liquidate Attacker Positions

Odaily  Kelp announced on X platform that it has coordinated with multiple DeFi protocols to complete the liquidation of the attacker's positions, achieving key progress in the rsETH recovery process. Among them: Compound participated in coordination multiple times over the past four weeks, providing approximately 3,000 ETH in support, and jointly completed the liquidation with Aave, recovering a total of approximately 17,426.20 rsETH; Euler Finance liquidated the attacker's positions within its protocol and plans to return the excess ETH to the DeFi ecosystem fund.

Vitalik: AI-Assisted Formal Verification Could Be a Key Path to Enhancing Ethereum’s Security and Efficiency

Vitalik published an article titled “A Shallow Dive into Formal Verification,” introducing recent progress in applying formal verification to Ethereum’s cutting-edge research and development. The article states that developers can write code in Lean, EVM bytecode, or assembly language and verify its correctness via mathematically rigorous proofs that can be automatically checked—thereby improving both code efficiency and security. He notes that formal verification is especially suitable for complex yet well-defined-security systems such as STARKs, Byzantine Fault Tolerant (BFT) consensus, ZK-EVMs, and post-quantum signatures, and mentions related projects including Arklib, VCV-io, and evm-asm. The article also emphasizes that formal verification is not a panacea: it remains subject to limitations such as incorrect specification definitions, unverified code paths, hardware-level constraints, and side-channel attacks.

Monero GUI 0.18.5.0 "Fluorine Fermi" Released, Fixes Multiple Vulnerabilities and Upgrades P2Pool Component

privacy project Monero has released the graphical wallet software GUI version 0.18.5.0 "Fluorine Fermi". This update is a recommended upgrade version, primarily including numerous bug fixes and feature optimizations. Key highlights of this release include:Migration of the P2Pool installation path to LocalAppData on Windows systemsFix for an edge case in URI parsingProhibition of creating offline transactions in scenarios involving long payment IDsEscaping untrusted text during QR code scanning to enhance securityUpgrade of P2Pool to v4.15Numerous detail bug fixes and stability improvementsMonero officials stated that this version has been open-sourced on GitHub. Users can download and upgrade through official channels to obtain the latest security fixes and stability improvements.

Insiders Reveal Key Points of Iran's Response to the U.S.

Odaily News On the 10th local time, sources indicated the key points of Iran's response to the U.S., which include a demand for the U.S. Treasury Department's Office of Foreign Assets Control to lift sanctions related to Iran's oil sales within 30 days.The sources stated that the U.S. disclosure of Iran's response was inaccurate in some important aspects, particularly regarding nuclear issues. Iran's response emphasized the need to reach an agreement through political understanding, immediately end the war, ensure no further attacks against Iran, and that the U.S. must lift sanctions. Additionally, Iran's response also addressed changes in its control over the Strait of Hormuz if the U.S. fulfills certain commitments.The sources said that Iran stressed that after signing a preliminary understanding agreement, the U.S. must immediately lift the naval blockade on Iran and remove sanctions on Iran's oil sales within 30 days. Iran's response also included the U.S. unfreezing Iranian assets based on a preliminary understanding between the two sides, and the U.S. implementing certain measures within 30 days. (CCTV News)

MicroAlgo Releases Quantum Blockchain Architecture, Introducing QKD and QSC to Enhance Security

According to the Wall Street Journal, algorithm development company MicroAlgo Inc. has announced the launch of a quantum technology–based blockchain architecture that enhances transaction security and transparency by integrating cyclic Quantum Secure Channels (QSC) with Quantum Key Distribution (QKD). The architecture features a four-layer design: a quantum communication layer, a blockchain core layer, a smart contract layer, and an application layer. QKD enables highly secure key generation and distribution, while quantum encryption safeguards transaction data against theft and tampering—and remains resistant to attacks from quantum computers.

Syndicate Labs Suffers Private Key Leak Attack, Cross-Chain Bridge Maliciously Upgraded Resulting in Approximately 18.5 Million SYND Transferred

Syndicate Labs disclosed a security incident: an attacker compromised the system through a private key leak and maliciously upgraded the cross-chain bridge contracts on two chains, leading to the transfer of approximately 18.5 million SYND and about $50,000 in user assets. The attack originated from a compromised development endpoint. The attacker exploited production environment permissions to upgrade the bridge contracts to a malicious version, but other chains were unaffected. The losses include:Commons Bridge: Approximately 18.5 million SYND were transferred and sold, worth roughly $330,000.Another Appchain: Approximately $50,000 in user assets were transferred.Syndicate Labs stated that affected SYND holders will receive full compensation, along with additional excess compensation, leaving their overall holdings higher than before the incident. Affected users on the Appchain will also be fully reimbursed for their losses.

Berachain Blacklists Reward Vaults and Suspends BGT Rewards in Response to Wasabi Private Key Leak

Odaily, Berachain Foundation issued a warning on the X platform, stating that the Wasabi Protocol experienced a cross-chain security incident due to a deployer's private key leak, which has impacted multiple blockchains including Berachain. To prevent the risk from spreading, Berachain has suspended and blacklisted all affected Wasabi Reward Vaults within its network, immediately halting the distribution of BGT staking rewards to the compromised contracts and blocking the flow of new BGT into the affected vaults.The official team requires all users who have previously interacted with Wasabi on Berachain to immediately revoke token approvals for the specified contracts to avoid the risk of asset theft. Berachain also emphasized that the BGT reward funds within the native Reward Vaults remain secure and users can claim them normally; this incident does not affect core ecosystem interests.

QCP: BTC Monthly Gain Exceeds 14%; Geopolitical and Security Incidents Disrupt Market Sentiment

QCP Group’s analysis states that U.S.-Iran negotiations have once again collapsed, while the Middle East ceasefire continues, leaving the overall geopolitical landscape relatively static. A shooting incident occurred at the White House Correspondents’ Dinner, with Trump suspected as the target. Following Asia’s market open, BTC briefly surged past $79,000 and ETH above $2,400—but gains quickly reversed amid concerns triggered by news of Iran’s Foreign Minister traveling to Russia for talks with Putin. Since early April, BTC has rallied over 14% cumulatively, marking four consecutive weeks of positive closes. Spot ETFs recorded nine straight days of net inflows totaling approximately $2.11 billion. Strategy funds added over $3.8 billion worth of BTC in the past month. The current key resistance level for BTC lies near the CME gap around $82,000. BTC perpetual contract funding rates remain persistently negative; a breakout above this level could trigger short-covering. Implied volatility continues declining, and risk-reversal skew has narrowed somewhat, signaling gradually rising market interest in upside exposure. Key events this week: - April 29: Earnings reports from Microsoft, Amazon, Meta, and Google, plus the FOMC interest-rate decision. - April 30: Apple earnings report, U.S. Q1 GDP data, and March PCE inflation data.

SlowMist CISO: Bitwarden CLI Hit by Supply Chain Attack; Malicious Package Circulated Briefly for ~1.5 Hours

SlowMist CISO 23pds (@im23pds) disclosed that the Bitwarden CLI version 2026.4.0 was subjected to a Checkmarx supply-chain attack between 17:57 and 19:30 ET on April 22. During this window, attackers abused a GitHub Action within Bitwarden’s CI/CD pipeline to briefly distribute a malicious package via npm. The official statement confirmed that Vault data was not compromised and production systems remained unaffected; only users who installed this specific version via npm during the aforementioned time window were impacted. Affected users are advised to immediately uninstall version 2026.4.0, clear their npm cache, rotate sensitive credentials—including API tokens and SSH keys—investigate anomalous activity in GitHub and CI environments, and upgrade to the patched version 2026.4.1.