[The scale of money laundering in cross-chain transactions hit a record: illegal crypto assets reached US$7 billion in one year] According to Golden Finance, the blockchain company Elliptic released a report stating that the scale of illegal crypto assets laundered through cross-chain transactions reached a record high of 70 billion US dollars in one year. One hundred million U.S. dollars. The report analyzes that the popularity of money laundering methods is related to the following factors: 1. Criminal activities shift from Bitcoin to other currencies with attractive qualities, such as confidentiality currencies such as Monero and stable coins USDT, DAI, etc.; 2. Attacks on DeFi through hackers Protocols generate criminal proceeds; 3. Lack of verification for cross-chain services, unlike centralized platforms; 4. Lack of analytical tools to reliably track transactions between blockchains; 5. Enforcement against mixers and exchanges that do not comply with KYC rules Action, leading people to look for alternatives. The market needs to pay attention to the security and compliance of cross-chain transactions and improve industry standards.