A joint research report by Web3Caff Research and SlowMist, analyzing the new on-chain security challenges as AI Agents enter Web3. Using real cases including Bankr/Grok Morse code attack, PocketOS database deletion, LiteLLM supply chain poisoning, and Vercel/Context.ai breach, the article reveals attack surfaces expanding from private key theft to a five-layer composite risk targeting model goals, memory, toolchains, wallet authorization, and payment paths. It categorizes defense solutions from Cobo, Fystack, Thirdweb, Coinbase, OKX, Binance, GoPlus, and SlowMist, and proposes six design principles—intent-execution separation, isolation, verifiable UI, toolchain governance, payment boundaries, and rapid incident response—to help projects build security infrastructure for the Agent era.

Chainalysis has released the Blockchain Tracing Ontology data framework, aiming to establish unified, transparent, and verifiable standards for blockchain analysis. The framework addresses the long-standing inconsistency in address clustering results by introducing a layered 'wallet fragment' model that replaces traditional clusters. It emphasizes evidence provenance, reasoning processes, and confidence levels, significantly improving admissibility and interoperability of on-chain analysis in judicial forensics and compliance scenarios. This marks a critical milestone in blockchain forensic standards.

Estonia-based cryptocurrency exchange Coinmetro has filed for restructuring with local courts and suspended user registration, deposits, and withdrawals since June 22. CEO Kevin Murcko revealed that a gap left by a failed financial services provider years ago became fatal to the company's balance sheet as the EU's MiCA compliance deadline (July 1) approached. Coinmetro also faces overdue annual reports, tax arrears, and a lawsuit from Prime Trust's bankruptcy trustee seeking to recover approximately $1.2 million withdrawn before Prime Trust's collapse.

Shares of Circle (CRCL), a leading crypto-concept stock in U.S. equities, slumped 17.55% on Tuesday to $62.63, nearing all-time lows. Two negative catalysts emerged simultaneously: the new stablecoin project Open Standard announced support from over 140 companies, including Visa, Mastercard, BlackRock, Coinbase, Google, and BNY Mellon, with its Open USD stablecoin slated for a 2026 multi-chain launch on Base, Solana, Stellar, Polygon, and Ripple; and the Russell Indexes removed CRCL from its Russell 1000 Growth and other growth indices after the June 26 close, triggering forced selling by passive funds tracking these benchmarks. The dual blows have intensified market concerns over Circle's competitive positioning and index-driven outflows.

A newly created wallet purchased 9,876.38 ETH ($15.4M) at an average price of $1,559.82 and immediately staked all as wstETH, signaling strong bullish sentiment from a whale.

Phantom announced that Alvin Hsia, Emily Hsia, and Aris Samad, the three co-founders of Ventuals, have joined the company. Ventuals built one of the most sophisticated perpetual futures products on Hyperliquid, achieving over $1 billion in annualized trading volume. Their backgrounds include Airbnb, Brex, and Paradigm. This move accelerates Phantom's push into perpetual futures and its vision of connecting the world to open markets.

Phantom wallet announced that Alvin Hsia, Emily Hsia, and Aris Samad — the core team behind Ventuals, a sophisticated perpetuals product on Hyperliquid with over $1B in annualized trading volume — have joined the company. Their backgrounds include Airbnb, Brex, and Paradigm. As the largest distribution partner in the Hyperliquid ecosystem, Phantom aims to deepen its perpetuals capabilities and redefine what a wallet can offer in open markets.

The mysterious teaser project 'World' has been disclosed by Phantom as a non-custodial prediction market protocol on Solana, offering order routing and oracle settlement support. No team, token, funding, or full product details have been released. The industry is watching its potential market impact.