China Unionpay Co., Ltd.

Wenhai Yu

Wei Guo

Shuo He

Jin Qian

Cheng Peng

Chengqian Chen

Limin Zhang

Disclosed in the present application are a model protection method and apparatus, a data processing method and apparatus, and a device and a medium, which are used for improving the security protection of a model. In the present application, a cloud device can determine, from a target model, a first sub-model which is stored in a trusted execution environment (TEE) of a terminal device, and send the first sub-model to the terminal device; the terminal device can store the first sub-model in the TEE of the terminal device; and the TEE can ensure that data processing, etc., are performed in a trusted environment.

Model protection method and apparatus, data processing method and apparatus, and device and medium

The present application discloses a payment information processing method, apparatus, device, and computer readable storage medium. The payment information processing method includes: obtaining an environment image collected by a mobile acquiring device, in response to an acquiring request sent by the mobile acquiring device; determining a payment environment confidence level of the mobile acquiring device according to the environment image, under a condition that the mobile acquiring device obtains payment card information; determining a payment information processing result according to the payment environment confidence level.

Payment information processing method, apparatus, device and computer readable storage medium

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Shanghai, China

Wenhai Yu