Easy stuff first... Eventhough you don't purchase the WF subscription you can still benefit from it. I'm not certain the timelines, when items deamed "malware" get included into to "Threats" if at all, but even w/o a WF subscription you're still allowed to send files to the WF cloud. You just only get sig updates ever 24-hrs vice every 30 minutes. As to URL subscriptions. With it you'd be able to deny users/students from accessing gambling, pronography, hate type sites. Those would be the ones that i would classify as an "Offensive" nature. Then there's Anonymizers, drugs, hacking, malware, phishing, and "parked" type sites that URL filtering would provide restrictions on. For our network we get thousands of hits to "malware," but that includes guest IP space. Being able to block "parked" domains are good because they're typically used by hackers as those domains typically have no relavant INet traffic except as an infection source.
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