I know your webshield is very efficient, but I think more about the antivirus engine?
Best answer by Muddy7
For me, yes. I used to run Eset alongside Webroot, but stopped that some years ago and have never (since moving in 2006 to Prevx*->Webroot) knowingly been infected**. I also used to from time to time use online scanners from reputable AV firms to get a second opinion (even still do once in a blue moon), but they never found an infection.
Having said that, some people here like to add Voodoo Shield as a complement to Webroot. Imo not strictly necessary, but it does harden your protection even more!
Anyway you didn't ask me LOL, you asked Webroot, so let's hear what they have to say.
*Prevx was acquired by Webroot late 2010 and Webroot entirely rebuilt its AV technology from Prevx's.
**Btw before then I got infected rather a lot Too much in fact .