2 verdict for the same file??

I dont know how all the comodo cloud works. But sometimes I doubt the cloud service. Attached is the screenshot of D+ events for the same file i.e leaktest.exe from grc.com. At around same time the verdict is different. D+ events says Scanned Online & Found Safe & at another try it says Scanned Online & Found Malicious. Now how is this possible? I find all these cloud service doubtful.


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