Harmful information processing method and device, medium and computing equipment

The embodiment of the invention provides a harmful information processing method, a medium, a harmful information processing device and computing equipment. The method comprises the following steps: when it is detected that a user logs in a client on target equipment, acquiring harmful information data of the user, and acquiring an unprocessed harmful information identifier corresponding to the target equipment according to the harmful information data; generating a cleaning instruction according to the unprocessed harmful information identifier; and sending the cleaning instruction to the target equipment, so that the target equipment deletes the harmful information indicated by the cleaning instruction. When the user logs in the client through the target device, the unprocessed harmful information in the target device of the user is tracked by acquiring the unprocessed harmful information identifier corresponding to the target device, so that the harmful information on each device of the user can be deleted