While browsing chess.com lately, I have been getting the following warning page quite frequently (using chrome):

The particular site listed might not be the same every time (I haven't kept track), but this has happened perhaps 6-7 times in the past couple of weeks.  I'm not really too worried personally, but I thought someone might want to know...

I believe this is a bug with chrome, that has happaned elsewhere as well.

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This is actually typically a problem with Norton AV, if you are using that, I might recommend switching... either way, heres more information on this issue: http://support.chess.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=699 

But, long story short, you are probably fine.

No, I don't use Norton, and I'm not worried or concerned.  But I thought the staff here would want to know, that's all.