Morning Edition · Wednesday, September 9, 2026
Crypto
Attackers Return 3,400 of 4,000 Bitcoin Taken From Blockstream's Liquid Sidechain and Keep 598.5
The group that drained the federation wallet backing L-BTC left about $47 million in bitcoin outstanding as a self-declared bounty, and researchers dispute its claim to be acting in good faith.
Crypto
Aztec Discloses Critical Proving-System Flaw in Its Live Alpha V5 Privacy Network
Core contributors found the defect on 27 July through internal auditing assisted by artificial intelligence (AI) tools, and say an attacker could construct a proof that verifies for a transaction the network should reject.
Crypto
Ethereum Foundation Sets December 2029 Deadline for Quantum-Resistant Transactions and Validators
Five hard forks after the coming Hegotá upgrade will have to overlap rather than ship in sequence, and roughly 65 percent of circulating ether sits in address types a quantum attacker could target.
Crypto
Ethereum Researchers Publish Mempool Defenses for Native Account Abstraction
Two new proposals, one metering how many transactions an account may hold in the mempool and one splitting nonce types, aim to make programmable transaction validation safe for public nodes.
Crypto
Two New Exploit Reproductions Land as US Prosecutors Secure a Guilty Plea in a $245 Million Theft Ring
Researchers published working proofs of concept for the RouterDrain and SecuredFi incidents, pushing the DeFiHackLabs catalogue to 842 documented cases, while Malone Lam admitted to a racketeering conspiracy.
Crypto
Grayscale's Zcash Fund Passes $500 Million as Miden Prepares a Private Dollar Stablecoin With Circle
The fund holds more than 550,000 ZEC, roughly 3 percent of circulating supply, while Miden plans USDCx, a token backed one-for-one through Circle's xReserve contracts with balances hidden by default.
Crypto
Copper Loses Its Chief Executive as Its Sale Process Enters a Fourth Month
Amar Kuchinad has left the crypto custody firm without a buyer agreed, while British exchange CoinCorner launched a multisignature vault underwritten at Lloyd's with AnchorWatch.
Crypto
Crypto Lobbies Buy National Television Time to Save the CLARITY Act Before a 15 September Senate Vote
Republicans control 53 seats and need at least seven Democrats to reach the 60-vote cloture threshold, and party members privately expect the motion to fail.
Crypto
Circle Agrees to Buy Cross-Border Payments Firm Tazapay for $400 Million in Stock
The acquisition adds more than $25 billion in annual payment volume and payout rails across 100 markets, giving Circle regulated connections into local banking systems.
Crypto
Visa Opens Its Settlement Data to Blockchain Lenders Financing Stablecoin Cards
Visa's stablecoin settlement volume passed a $20 billion annualized run rate, a fifteenfold increase year over year, and the company now wants on-chain lenders to underwrite issuers using VisaNet records.
Crypto
Strategy Buys No Bitcoin for a Second Week and Doubles Its Preferred-Share Buyback to $2 Billion
The company spent $176.3 million repurchasing STRC as Michael Saylor's 8 September recovery date arrived with the shares still below their $100 stated value, while rival Strive's SATA approaches a $1 billion market capitalization.
Geopolitics
Iran Loosens Currency Controls and Routes Trade Through Tether and Bitcoin, Financial Times Reports
The shift treats digital assets as working payment infrastructure under sanctions, weeks after Tether froze about $131 million in wallets the United States linked to Iran's central bank.