Arbitrum news

Cross River Bank has partnered with Offchain to tokenize loans on Arbitrum One, with a production launch targeted for early 2027. The collaboration, announced at Hong Kong Fintech Week, will integrate tokenization directly into Cross River's lending platform, enabling loans to be funded, held, and transferred onchain from origination. Offchain's Enterprise Services will build the infrastructure, with ZeroDev providing embedded customer wallets. Cross River will remain the regulated lender of record, maintaining its underwriting, risk management, and compliance standards. The platform, which has completed a proof of concept, aims to streamline loan transfers and attract onchain funds and international investors. This move follows Cross River's recent agreement with Ripple to integrate RLUSD stablecoin into its payments infrastructure.

Arbitrum's Security Council moved 8,425 ETH and 74,559,805.2 ARB linked to the Binance hack into a holding address on October 30, using a temporary contract upgrade that allowed it to impersonate the sender. The action, which required 9 of 12 council approvals, stopped the attacker from moving the assets but did not recover the private key. Returning the funds to Binance will require a separate ArbitrumDAO governance vote, as the council only froze the assets and did not set a repayment timeline. The intervention was an atomic action that temporarily upgraded Ethereum's inbox contract and restored it afterward, with the destination address being 0x0000000000000000000000000000000000000DA0. This is similar to a previous April action involving KelpDAO funds, where governance approval and legal complications delayed the release. The council's emergency authority allows rapid response, but the release process involves distinct voting, legal, and execution stages, and the incident-specific quantities should be followed separately from other holdings at the same address.

Arbitrum's Security Council moved approximately $30 million in crypto assets stolen in the Binance hack, without needing the hacker's private key. The 12-member council used emergency upgrade powers, temporarily altering a core contract to execute transactions from the exploiter's address, then restored the original code.

CertiK is partnering with Arbitrum and Robinhood Crypto to provide security tools and mentorship to early-stage Web3 startups through the Arbitrum Mentorship Program. The initiative aims to help founders address security risks early in development, offering access to AI Auditor, Skynet, discounted security assessments, and personalized guidance on security, technology, business, and go-to-market strategy. Winning teams will receive extended AI Auditor access, priority pre-launch audits, regulatory guidance, and promotional opportunities. CertiK CEO Ronghui Gu emphasized the importance of building security into the startup process to strengthen foundations for long-term growth.

Fhenix has launched its confidential computing technology on Ethereum and Arbitrum mainnets, enabling smart contracts to process encrypted data without exposing underlying information. The Oct. 21 launch includes CoFHE, a fully homomorphic encryption (FHE) coprocessor that handles computationally intensive encrypted operations offchain and returns results to smart contracts. The company aims to address privacy limitations in decentralized finance and tokenization, citing a potential $1.5 trillion tokenization opportunity. CoFHE features dynamic throughput and a simplified developer experience using Solidity imports and encrypted data types. A dual-mode token architecture allows holders to switch balances between public and confidential modes in a single transaction without wrapping or bridging. Design partners include Fluton, building a cross-chain confidentiality engine, and Alpha Engine, a confidential onchain finance network. The system was audited by Consensys Diligence. Fhenix plans to expand with three more decentralized applications launching on CoFHE in Q4 2026 and two institutional partnerships expected soon. The team is also exploring confidential applications on Solana through the Colosseum hackathon.

Arbitrum One saw daily active addresses hit a 90-day high of 571,767 on October 22, 2026, before easing, according to growthepie data. This marked a 408.2% week-over-week jump, but transactions only reached 1.7 million, up 25.7%, and revenue fell 2.4% to $19.3K. DefiLlama reported similar figures with 570,079 active addresses and TVL of $1.45B. The spike was attributed to broad network usage rather than a single trigger, with native ETH transfers and USDC stablecoin transactions as main contributors. Stablecoin supply data varied, with growthepie showing $4.39B and DefiLlama around $3.5B. The user count followed a period of lower activity, amplifying the percentage increase. Analysts noted that while addresses surged, transactions per user declined, suggesting new arrivals were not highly active. The network ranked fifth by transactions among tracked chains. Key metrics to watch include whether addresses stay near the peak, transaction growth, and revenue recovery.

Fhenix has launched its CoFHE coprocessor, an encrypted computation layer, in production on Ethereum and Arbitrum mainnets as of October 21, 2026. This allows smart contracts on both networks to operate on hidden balances and positions using fully homomorphic encryption (FHE), with developers integrating via a single Solidity import. The coprocessor performs heavy computation off-chain and returns encrypted results to the host chain, avoiding a privacy silo. The launch includes a Dual-Mode Token Standard for switching between public and private balances in one transaction, and five retail-focused dApps selected from about 60 candidates. The mainnet begins with a permissioned allowlist, while testnets remain open. Fhenix reports its threshold decryption method achieves roughly 20,000 times higher throughput and up to 37 times lower latency based on ACM CCS 2025 research. The project shifted from an FHE rollup to this coprocessor model and acquired the Sunscreen team in July 2026, with $22 million raised in 2023.

Safe has launched Safenet Aegis, its transaction-security network, in production on Ethereum Mainnet, Gnosis Chain, and Arbitrum. The network, which went live on October 15, 2026, uses independent Sentinels to evaluate transactions, with validators attesting onchain. Users can optionally enable a formally verified Guard to enforce the network's findings directly onchain, moving beyond advisory warnings to block flagged transactions. The launch follows a six-month beta that processed around 100,000 transactions weekly and distributed 4.5 million SAFE tokens in rewards. Over 72 million SAFE tokens were staked by about 865 participants, with existing stakes automatically transitioning to production. SafeDAO approved SEP 56, allocating 7.4 million SAFE for a 12-month period starting October 13, 2026, primarily for staking rewards, while users pay onchain fees (e.g., 40 USDC) for transaction checks. Integration into Safe{Wallet} is planned for Q4 2026. Currently, users must enable the Guard manually. The network's success hinges on whether paid checks sustain activity after the subsidy period, with governance decisions through SafeDAO now carrying operational weight.

In the third week of October 2026, the crypto market will see token unlocks worth $845.8 million, with major projects Cronos, Arbitrum, and Starknet releasing new supplies, potentially causing volatility. Cronos unlocks 1.17 billion CRO ($70.85M) on October 17, allocated to its Strategic Reserve. Arbitrum unlocks 92.65 million ARB ($18.40M) on October 16, split between team, investors, and advisors. Starknet releases 127 million STRK ($15.42M) on October 15, distributed to early contributors and investors. Other projects like Connex, Cheelee, and Aerodrome Finance also have unlocks this week. Figures remain projections pending verification by Tokenomist.

Paxos's USDG stablecoin saw its market cap on Arbitrum One jump by $10.2 million in a day to $31.2 million, a roughly 49% increase. Launched natively on October 6, 2026, it integrated with DeFi protocols Fluid, Morpho, GMX, and Maple. The global supply of USDG exceeds $3.2 billion, making it the seventh-largest stablecoin, with Arbitrum holdings still under 1% of that network's stablecoin base. USDG is fully backed and regulated, with monthly attestations. Revenue from reserve yields is shared with distribution partners through the Global Dollar Network. An ArbitrumDAO proposal seeks to allocate 100 million ARB tokens to incentivize USDG liquidity and adoption, positioning the ecosystem to benefit from related GDN revenue.