Withdrawing digital currencies through WeChat and Alipay can lead to account suspension, mainly due to the following reasons:

- Policy and regulatory restrictions: Virtual currency transactions have always been in a gray area in our country, and regulatory bodies have repeatedly emphasized their illegal status. Payment platforms such as WeChat and Alipay must strictly adhere to laws and regulations, prohibiting any institution or individual from engaging in related businesses. Therefore, they maintain a 'zero tolerance' attitude toward activities involving virtual currency transactions.

- Anti-money laundering and risk monitoring: WeChat Pay and Alipay rely on advanced risk control systems that can accurately identify abnormal transaction behaviors. Digital currency transactions, due to their certain anonymity, are easily used for money laundering and other illegal activities. Once the platform detects suspicious virtual currency transaction records in a user's account, such as specific keywords or high-frequency small amount transfers, the system will automatically trigger an alert, and freezing measures will be taken to maintain financial order and ensure the safety of user funds.

- User reports: In the face of chaotic virtual currency transactions, many users actively report suspicious activities to WeChat Pay and Alipay. These reports provide important clues for the platform, helping to promptly identify and address accounts involved in virtual currency transactions.

- Police investigations: If digital currency transactions are related to illegal activities, such as telecommunications fraud or online gambling, the police may request payment platforms to assist in freezing related accounts to prevent fund transfers and further illegal activities.