FTSE Russell has partnered with Chainlink to publish its global index benchmarks on blockchain networks for the first time through DataLink, Chainlink's institutional-grade data service. The collaboration makes indices including the Russell 1000, Russell 2000, Russell 3000, FTSE 100, WMR FX benchmarks, and FTSE Digital Asset Indices accessible across more than 50 blockchains to over 2,000 ecosystem applications. FTSE Russell's indices serve as benchmarks for more than $18 trillion in assets under management.

Decentralized exchange protocol Balancer lost $128 million on November 3, 2025, in an exploit spanning six blockchain networks. The attack targeted an access control vulnerability in Balancer V2's smart contracts, with Ethereum accounting for $99 million of total losses. The incident prompted Berachain validators to execute an emergency network halt and hard fork.

Decentralized finance protocol Balancer lost more than $128 million in a security breach on Monday. Security firms Peckshield and Cyvers detected the incident after observing large on-chain transfers, including 6,587 WETH ($24.5 million), 6,851 osETH ($26.9 million), and 4,260 wstETH ($19.3 million). Balancer confirmed awareness of the exploit affecting its v2 tools and stated its engineering team is investigating.

Balancer suffered a security breach on November 3, 2025, resulting in approximately $116 million in losses across Ethereum, Arbitrum, Base, and Optimism networks. The attack exploited smart contract vulnerabilities to drain wrapped ETH from the decentralized exchange protocol. Ethereum's mainnet accounted for $91 million of the total losses, with the attacker's wallet identified holding multiple versions of unwrapped stolen assets.

Ethereum-based decentralized exchange Balancer experienced unauthorized withdrawals of approximately $88 million across multiple blockchain networks, according to blockchain security firm PeckShield. Onchain data shows large transfers of wrapped ether and liquid staking derivatives from protocol vaults to external addresses. The protocol's native governance token BAL declined more than 4% following the incident.

The European Commission will present a proposal in December to establish a single regulatory authority overseeing cryptocurrency exchanges, stock markets, and clearing houses, similar to the U.S. Securities and Exchange Commission. The initiative aims to reduce fragmentation across national supervisors and streamline cross-border operations for financial firms across member states. One option under consideration involves expanding the European Securities and Markets Authority's mandate to cover major cross-border financial entities.

Coinbase CEO Brian Armstrong announced the x402 protocol on November 2, enabling stablecoin payments to integrate directly with web requests. The protocol's ecosystem has surpassed $1.19 billion in market cap, with transaction volume exceeding 932,000 within one week of launch. Armstrong described the growth trajectory as "crazy," reflecting strong early engagement.

Payment infrastructure leader Stripe has partnered with crypto venture firm Paradigm to launch Tempo, an Ethereum Virtual Machine-compatible layer-1 blockchain designed for stablecoin operations and payment applications. The network can process approximately 100,000 transactions per second with low fees, according to data from respective block explorers. Tempo raised $500 million in a Series A funding round at a valuation of approximately $5 billion, Fortune reported in October.