$USDC is a stablecoin issued by Circle, always pegged 1:1 to the US dollar, with transparent reserves. Thanks to regulatory compliance, USDC is accepted by many CEX and DEX exchanges, facilitating fast transactions with low fees. In DeFi, investors use USDC as collateral, for yield farming, and to hedge against market volatility. In Vietnam, USDC is gradually replacing USDT due to its monthly audit credibility. However, USDC still depends on the US banking system; the Silicon Valley bank incident in 2023 caused USDC to temporarily lose its peg. Investors should allocate risks appropriately.