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This week in DeFi:
Circle's Arc mainnet launches September 16, with BlackRock, DTCC, Visa, and Mastercard among its 11 founding validators. Ether.fi also made a major move, splitting weETH into pure liquid staking and launching weETHs to carry restaking exposure separately. On the risk side, Coldcard hardware wallet hack losses now top $114M, and a live BTCPay Server zero-day is draining Lightning nodes.
DeFi📈
Circle is launching Arc mainnet September 16 with 11 founding validators including BlackRock, DTCC, Visa, and Mastercard.
The permissioned validator set enables institutional-grade stablecoin infrastructure across Ethereum, Binance, Near, and Noble.
Ether.fi separates weETH into pure liquid staking and launches weETHs as a dedicated liquid restaking token powered by Symbiotic.
This simplifies the product by removing restaking exposure from weETH entirely.
Term V2 launches on Ethereum, Plasma, Binance, Avalanche, Arbitrum, and Base with peer-to-peer fixed-rate market execution. Launch partners include Ether Fi, Falcon X, Pareto Credit, Pendle, and Tori Finance.
Kamino launches Institutional Yield on Solana, connecting onchain capital with institutional credit markets through purpose-built vault infrastructure.
Raydium launches Limit Orders on Solana, allowing trades to execute automatically when target prices are reached.
Morpho introduces Multi-market Offer, allowing capital to be allocated across multiple markets simultaneously until matched.
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Issues⚠️
Bitcoin stolen from Coldcard hardware wallet hack now exceeds $114 million. The ongoing security breach highlights vulnerabilities in popular hardware wallet infrastructure.
Users are reporting stuck withdrawals since July 26 as BitMart winds down, with one user claiming $10.1M frozen and support staff going silent.
Founder Sheldon broke silence days later, denying misappropriation or fleeing, and says the team is conducting asset reviews and considering third-party audits — but has not given a timeline for resuming withdrawals.
BTCPay Server faces an actively exploited zero-day vulnerability draining Lightning node funds, with Foundation and Citadel21 already compromised despite ongoing patch efforts for version 2.4.2.
Seamless DAO completed remediation for the USDC vault on Morpho’s Base deployment, contributing 190,925 USDC under SIP-51. The incident response addresses the USR exploit with an additional 190,897 USDC in recovery funds.
A fake Wasabi Wallet drainer app appeared on the Apple App Store, with one victim already losing 6 BTC — the 27th wallet clone to reach the App Store this year. A fake Ledger app remains the worst offender at $9.3M stolen.
Always verify wallet apps through official links before downloading.
Stablecoins/RWA🪙
Bond SuperApp launches pre-deposit campaign on Ethereum, Avalanche, and Linea with up to $10M in incentives from 0G Labs.
Apyx launched on Solana, letting users stake apxUSD to mint apyUSD and earn real-time yield backed by Strategy’s STRC preferred equity — with points accruing toward the October 13 APYX TGE.
Backpack Securities launches real stocks onchain via Solana, tokenizing U.S. brokerage shares for seamless ecosystem movement.
News🗞️
Senate Leader Thune advanced the CLARITY Act toward a floor vote in September, marking a major legislative push for crypto market structure regulation.
EIP-8361 proposes a tapered burn on staking rewards that fully offsets issuance around 50% staked ETH, capping the incentive for stake growth beyond that point.
Critics including Aave’s Stani Kulechov warn it could slash yields and disrupt DeFi protocols reliant on staking returns.
Cloudflare launched Cloudflare Wallets, enabling stablecoin storage, service payments, and fund receipts natively across the web — bringing crypto payments infrastructure directly into internet plumbing.
ai16z founder Shaw declared the token dead and the foundation winding down, following a Burwick lawsuit settlement that drained the treasury.
He said he never sold his holdings and will keep building the Eliza AI framework independently, without a token, citing burnout and community hostility.
Mastercard is piloting its Crypto Credential compliance framework with Borderless.xyz to verify participants in cross-border stablecoin payments.
Multipli launched its MULT token community sale via SONAR, Coinbase Echo’s onchain sale platform, with a pre-open registration phase now live at claim.multipli.fi.
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