Abstract: A method, a device and a system for detecting security of a download link are provided. The method comprises: pre-acquiring an information set of download link security (S101); performing a feature matching between information of a download link and content of the information set of download link security (S102); and identifying security of the download link according to a result of the feature matching, and presenting an identification result to a user (S103). In the method, device and system, statistics regarding security of download links in a network are collected in advance to generate an information set, whether a download link in a webpage is secure is determined according to the preset information set, and a corresponding prompt is provided to a user, so that the user can know the security of the download link before downloading, thereby reducing ineffective download behaviors and the consumption of network bandwidth resources.

Abstract: A method and client for ensuring user network security, the method comprising: detecting whether a user opens a login operation mode or payment operation mode via a client; and when detecting that the user opens the login operation mode or payment operation mode, performing security monitoring for the login procedure or payment procedure of the user according to a preset security strategy. By applying the embodiment of the present invention, when a client user is in a login procedure or online payment procedure, security protection can be implemented for the login procedure or payment procedure via multiple security strategies specially used for ensuring the login procedure or payment procedure, and network security is ensured for the user during the login procedure or payment procedure via risky process interception, executable file prompt and browser invoke monitoring.

Abstract: Disclosed are download resource providing method and device, wherein the method comprises: detecting security of an original resource to be downloaded by a user; if the original resource is detected to be insecure, querying a secure download resource matching the user's download requirement; and providing the user with link information of the secure download resource. The technical solution of the present invention ensures that the provided alternative resource is secure, meanwhile avoids consumption of the system resource and network bandwidth due to repeated searching and downloading operations of the user.

Abstract: The invention discloses a user data backup method, comprising: searching a local computer of a user for an editable document; according to a search result, marking the editable document as data with backup requirement; and backing up the data with backup requirement in a storage device on a network side. Also disclosed is another user data backup method, comprising: monitoring a removable storage device connection status of a local computer of a user; if it is detected that a removable storage device is connected to the local computer, marking data in the device as data with backup requirement; and backing up the data with backup requirement in a storage device on a network side.

Abstract: A method, a device and a system for detecting security of a download link are provided. The method comprises: pre-acquiring an information set of download link security (S101); performing a feature matching between information of a download link and content of the information set of download link security (S102); and identifying security of the download link according to a result of the feature matching, and presenting an identification result to a user (S103). In the method, device and system, statistics regarding security of download links in a network are collected in advance to generate an information set, whether a download link in a webpage is secure is determined according to the preset information set, and a corresponding prompt is provided to a user, so that the user can know the security of the download link before downloading, thereby reducing ineffective download behaviors and the consumption of network bandwidth resources.