A malware warning system, including a client sending requests to and receiving replies from a server, and a server, including a first warning generator sending to the client a warning including a threat level of content located at a web site, in response to receiving from the client a URL for accessing content at the web site, a second warning generator sending to the client a warning including information about at least one of the nature of the threat of the content located at the web site and a location of the web site, in response to receiving from the client a request for more information about the nature of the threat, and a third warning generator, sending to the client a warning including an instruction to perform a swipe gesture to confirm a request to access the URL, in response to receiving that request from the client.