Abstract: An Internet of Things device includes an anomaly monitoring switch such that the Internet of Things device performs anomaly monitoring when the anomaly monitoring switch is enabled. An anomaly rule is stored in the Internet of Things device. According to the anomaly rule, the Internet of Things device determines whether a request sent by the Internet of Things device is an anomaly request and whether a control instruction received from an Internet of Things cloud platform is an anomaly control instruction. When the anomaly request or anomaly control instruction is received, the Internet of Things device discards the anomaly request or the anomaly control instruction.

Abstract: A method for preventing data misdeletion includes: each of an Internet of Things (IoT) terminal and a user terminal is provided with a misdeletion prevention switch; and when a user opens the misdeletion prevention switch of the user terminal, the misdeletion prevention switch of the IoT terminal is synchronously opened, and when a server obtains a deletion request generated by the server, the server does not respond to the deletion request.

Abstract: This application is applicable to the field of communications technologies, and provides a method and a device for preventing data misdeletion, a storage medium, and a program product. The method includes: Each of an IoT terminal and a user terminal is provided with a misdeletion prevention switch; and when a user opens the misdeletion prevention switch of the user terminal, the misdeletion prevention switch of the IoT terminal is synchronously opened, and when a server obtains a deletion request generated by the server, the server does not respond to the deletion request. In this way, the misdeletion prevention switch of the IoT terminal is in an opened state, data of the IoT terminal stored in the server is not deleted, and data of the IoT terminal stored in the IoT terminal is also not deleted, so that related data of the IoT terminal can be prevented from being mistakenly deleted, to prevent the IoT terminal from being mistakenly deleted from an Internet of Things that the IoT terminal has accessed.

Abstract: Embodiments of this application provide a communication signal detection method. The method is implemented on a terminal device. The terminal device detects a trigger event; performs self-detection on the terminal based on the trigger event, where the self-detection is detecting a status of a wireless signal of the terminal device; and prompts reminder information when determining, based on the self-detection, that the wireless signal is abnormal. In technical solutions provided in the embodiments of this application, a self-detection capability and self-detection efficiency of the terminal device are improved, and a user operation is reduced, thereby improving user experience.