KYC regulations require crypto exchanges, DeFi platforms, and NFT marketplaces to verify user identities, risk levels, and transaction histories. KYC processes involve government-issued ID checks, biometric authentication, and blockchain-based identity solutions to prevent fraud. Businesses must comply with financial crime regulations, customer due diligence (CDD) protocols, and real-time monitoring tools to detect suspicious activities. Privacy-focused solutions, such as zero-knowledge KYC (ZK-KYC) and decentralized identity verification (DID), offer compliance without compromising user privacy. Governments push for crypto wallet KYC mandates, DeFi KYC integration, and stricter identity checks on P2P transactions.