Group 1 - China Merchants Bank announced the cessation of ATM QR code deposit services starting April 9, citing the need to provide safe and convenient financial services, without further elaboration on the reasons [1] - The bank's QR code deposit service allowed customers to deposit up to 30,000 yuan per day per card, while the QR code withdrawal limit was set at 20,000 yuan per day per card [1] - The decision aligns with a broader trend in the banking industry, where many banks have tightened their QR code deposit services for security reasons [1][2] Group 2 - The tightening of cardless deposit services has been ongoing for three years, with several state-owned and joint-stock banks having already ceased or adjusted their related services [2] - In 2022, major banks like China Construction Bank and Bank of China also discontinued their ATM QR code deposit functionalities, indicating a shift in banking practices [2] - By 2024, numerous banks, including Industrial and Commercial Bank of China and Agricultural Bank of China, have also suspended cardless withdrawal services, reflecting a significant industry-wide trend [3] Group 3 - Analysts attribute the changes in cardless deposit services to risk control requirements, noting that the security of identity verification in QR code deposits is relatively low [4] - The overall demand for cardless deposit services is considered low, suggesting that the impact of these adjustments on banks' operations will be minimal [4] - The industry is moving towards more secure methods such as facial recognition for transactions, replacing previous authorization code and QR code methods [3][4]