I mean those that infect by only viewing a website or clicking a link. Not those that you have to click "Download" in the Windows dialog.
I want to know how important are virus definition updates in anti-virus software.
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As for “how important” it is to keep antimalware definitions updated, the answer is yes, I mean 17, wait, purple. No, monkey. No, no, it’s dishwasher. There is no answer to that question as there is no unit of measure. Suffice it to say that it is important.