Realtime information about spread of malware is really valuable from a prevention/attack perspective. Virus scanners also employ this method. That's why they st

Realtime information about spread of malware is really valuable from a prevention/attack perspective. Virus scanners also employ this method. That's why they still give away free versions of their software, just to have as much coverage as possible to get the latest zero-day. So you could even discuss if the data harvesting itself is with malicious intent or not.