Method, device and system for detecting security of download link

A device for detecting security of a download link comprising:

• at least one processor to:
• pre-acquire an information set of download link security;
• extract information of the download link in a current web page when a user is browsing the web page to perform a feature matching between the extracted information of the download link and content of the information set before requesting to download associated content of the download link;
• and
• identify security of the download link according to a result of the feature matching and present an identification result to the user.

A system for detecting security of a download link comprising:

• a network side server, a first class of clients and a second class of clients;
• wherein the first class of clients upon completion of resource download, detect security of the downloaded resource and report a detection result to the network side server;
• the network side server generates information of download link security according to the detection results reported by one or more of the first class of the clients;
• and
• the second class of clients each comprise:
• at least one processor to:
• pre-acquire an information set of download link security;
• extract information of the download link in a current web page when a user is browsing the web page to perform a feature matching between the extracted information of the download link and content of the information set before requesting to download associated content of the download link;
• and
• identify security of the download link according to a result of the feature matching and present an identification result to the user.