Gate News reports that on March 20, according to GoPlus security monitoring, an address starting with 0x9709 signed malicious Permit and Approve transactions, resulting in approximately $200,000 in USDC and wmtUSDT being stolen by phishing attackers. GoPlus reminds users to carefully verify transaction details and contract addresses when signing any on-chain authorization (Approve) or offline signature (Permit) requests, and avoid signing malicious requests from unknown sources to prevent asset theft.

Solana 區塊鏈穩定幣供應量達 179 億美元創新高，USDC 占比超過 56%。其穩定幣轉帳量超越以太坊和波場，顯示出在支付和資金流動方面的效率，突顯了其在經濟波動下的競爭優勢。

Gate News reports that on March 19, two unknown cryptocurrency wallet addresses transferred a large amount of USDC on-chain. The transfer amount was 406,839,885 USDC (approximately $406.8 million). The identities of the wallets involved have not been disclosed, and this large transfer has attracted attention from the crypto community.

Gate News reported that on March 19, Circle, the issuer of USDC, announced the appointment of a senior Microsoft executive to its board of directors. This personnel adjustment comes as competition intensifies in the AI agent (Agentic) space. Circle, the issuer of USDC, the second-largest stablecoin globally, sees this board expansion as an important move in its technology strategy deployment.

Gate News report: On March 19, according to Onchain Lens monitoring, a newly created wallet address deposited 2 million USDC to HyperLiquid and opened a 10x leveraged HYPE long position with a holding amount of 210,000 HYPE, currently valued at $8.29 million.

SBI控股子公司在日本推出首个面向公众的USDC借贷服务，年利率高达10%。该产品结合区块链技术，为投资者提供高收益选择，并与Circle和Startale合作扩展USDC生态系统，推动日本稳定币市场发展。

Gate News 消息，3 月 19 日，Sei 生态借贷协议 Yei Finance 宣布上线 Clovis 測試網。該測試網支持用戶在以太坊、Base、BNB Chain、Sei 等網絡上存入和跨鏈轉移 USDC 及 USDT。Clovis 是一個面向去中心化資產管理和跨鏈資產轉移的平台。

Gate News 消息，3 月 19 日，Trade.xyz 已通過 HIP-3 協議在 Hyperliquid 平台部署 S&P500/USDC（標普 500，美國股市基準指數）交易對，最高支持 50 倍槓桿。該合約於昨夜（3 月 18 日）正式上線，截至發稿，累計交易量已達 3150 萬美元，持倉量迅速攀升至 1960 萬美元。

Gate News Report: On March 19, the custodial agent economic control layer ClawVault announced that AI agents can now automatically pay x402 API fees using USDC. This feature will execute automatically but requires user authorization. Each payment will be reviewed through more than 30 configurable rules, including spending caps, whitelists, rate limits, approvals, and other security mechanisms.

SBI VC Trade 在日本推出面向零售用户的 USDC 借贷服务，用户可通过将 USDC 借给平台来获取利息，每次申请上限为 5000 USDC。此服务存在交易对手风险，SBI 可能会将借入的 USDC 重新贷出。