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A hack of Solana-based neobank Avici drained funds from users of its crypto card product overnight, with loss estimates climbing from $500,000 to more than $1.1 million before the company committed to making users whole.
Attackers extracted tax records for 678,000 individuals and professionals from France's tax authority, and a criminal listing of the data is now circulating. For crypto investors, the breach converts a tax database into a physical targeting list.
OneKey's security team says it reproduced an attack that makes a Ledger sign a different transaction than the one displayed. Ledger confirms the underlying flaw but says every affected version was patched before the demonstration was published.
The week's smaller security stories in brief: Harmony's rollback remains planned but unconfirmed, the Coldcard fallout shifts the industry conversation toward multi-vendor custody, and Sparrow ships fixes surfaced by an AI-assisted review.
Bitcoin briefly touched $81,000 before pulling back following Fed Chair Kevin Warsh's inflation comments at Jackson Hole, yet the cryptocurrency still recorded its largest weekly dollar gain in 2026 as ETF inflows accelerated.
The Bitwise Solana ETF becomes the first Solana-based fund to reach the $1 billion milestone, marking significant institutional adoption despite recent price volatility.
The brokerage giant adds SOL, AVAX, and LINK to its crypto platform, giving 39.9 million account holders access to major altcoins through traditional brokerage infrastructure.
Long-dormant Bitcoin addresses from the early 2010s have begun transferring funds to exchanges, including wallets linked to historical criminal activity and early adopters cashing out after years of inactivity.
The securities regulator introduces new rules that could provide a pathway for certain crypto assets to exit investment contract classification, potentially clarifying the regulatory status of tokens currently in enforcement limbo.
Bitcoin is consolidating around $80,000 after Nvidia's earnings beat lifted risk assets, with Fed Chair Kevin Warsh's Jackson Hole speech and a $6.58 billion Deribit options expiry both due on Friday.
Chainalysis puts onchain taxable crypto activity at a minimum of $457 billion for 2025, with the OECD's CARF reporting framework covering only about 14% of it, exposing a widening tax reporting gap.
South Korea's Dunamu and Visa will jointly explore stablecoin payments, cross-border remittances and AI-driven financial services, including business models built around the Open Standard initiative's OUSD stablecoin.
The gaming platform will repay eligible SAND holders one-for-one from its treasury after a bridge configuration flaw let an attacker drain 14.7 million SAND, with claims expected to open within two weeks.
Virtu Financial, M1X Global and Tradeweb executed a repo transaction collateralized by the Marshall Islands' USDM1 digital bond, settling the full cycle on the Canton Network in under 10 minutes.
US homebuyers can now pledge Bitcoin worth 250% of a down payment loan as collateral through Coinbase Prime, avoiding the need to sell — with liquidation triggered only by 60-day delinquency.
Every major token except Solana and BNB traded flat or lower over 24 hours, with XRP leading losses after hotter US inflation data pushed rate expectations toward hikes rather than cuts.
Economists estimate that if deposits became 10% more rate-sensitive, banks' capacity to hold long-term assets could fall by about $700 billion — as AI agents make instant bank switching automated.
The proposal reached the OMB on Aug. 25 and could rewrite how investment advisers and funds hold digital assets — reviving a rulemaking the previous administration abandoned in 2023.
A StarkWare researcher spent a Bitcoin output protected by hash-based signatures in block 964,199, demonstrating quantum-safe spending without a protocol fork — at a cost of up to $200 per transaction.
The BankChain Alliance, formed by 39 US state banking associations, plans an industry-owned blockchain network for tokenized deposits, stablecoins and automated settlement, targeting a 2027 launch.
CryptoQuant's Bull Score jumped from 30 to 80 as eight of ten indicators turn bullish, but the analytics firm warns that whale profit-taking and rising exchange inflows could bring near-term turbulence.
Japanese authorities are working on a blockchain-based settlement system for equities, with a formal blueprint expected in early 2027 and full operation targeted for the early 2030s, according to a Nikkei report.
The crypto-linked prediction market platform has raised $1.12 billion via a private equity offering since April, according to a Form D filing, as it reportedly eyes a larger round at a $40 billion valuation.
Solana's transaction count hit an all-time high of 4.2 billion in July, up 13.5% month-over-month, as tokenized real-world assets on the network approach $4 billion and SOL reclaims $100.
Bitcoin surged above $80,000 for the first time since May, posting its second-best week since early 2021, as shifting U.S. Treasury policy and renewed ETF demand drove a broad cryptocurrency market recovery.
Coinbase has introduced tokenized versions of Apple, Nvidia, Meta, and Alphabet shares on its Base layer-2 network, using a new regulatory framework established in Abu Dhabi to bring traditional equities on-chain.
The Ethereum-compatible blockchain Monad has proposed a new wallet upgrade that would allow users to replace compromised keys without changing their addresses, opening the door to passkey support and post-quantum security enhancements.
Pakistan's virtual asset regulatory authority has established a formal licensing framework for cryptocurrency companies, requiring all service providers to submit applications for no-objection certificates by September 5 or cease operations.
Solana network validators are considering three governance proposals that would collectively reduce SOL supply growth by accelerating inflation decline and raising daily fee burns from approximately 650 SOL to as much as 9,000 SOL.
A cross-regional pilot led by the Responsible Fintech Institute and Safeheron will test NIST-standard ML-DSA-65 signatures on a quantum-resistant NEAR testnet, with regulators from Abu Dhabi, Bhutan and Malta observing.